📚 Year 8 WJEC Engineering: Vocabulary & Terminology Quick-Memorisation Guide | 八年级WJEC工程：词汇术语速记指南
Welcome to your fast-track guide for mastering essential engineering terms! Understanding the vocabulary of engineering is the first step towards thinking like an engineer. This guide breaks down key words into bite-sized definitions and provides clever memory tricks to help you recall them quickly in class, during homework, and in tests.
欢迎来到工程术语速记指南！掌握工程词汇是像工程师一样思考的第一步。本指南将关键术语拆解成易消化的小模块，并配以巧妙的记忆技巧，帮助你在课堂、作业和考试中快速回忆起它们。
1. Engineering Materials | 工程材料
In this section, we look at two fundamental material groups. Engineers select materials based on their properties and how they can be shaped for a product.
本节介绍两种基础的材料类别。工程师根据材料性质及其加工成产品的方式来选择材料。
Metal: A material that is usually hard, shiny, malleable and a good conductor of heat and electricity, e.g. steel, aluminium. Memory tip: Picture a knight’s shiny armour – it is metal and would conduct a lightning strike!
金属: 一种通常坚硬、有光泽、可延展且导热导电良好的材料，如钢、铝。速记贴士： 想象闪亮的骑士盔甲——它是金属制成，被闪电击中时会导电！
Polymer: A large molecule made up of many repeating units. Most polymers are used as plastics and can be moulded when heated. Memory tip: ‘Poly’ means many, ‘mer’ means part. Think of many paper clips linked in a chain – each clip is a monomer, the chain is a polymer.
聚合物: 由许多重复单元组成的大分子。大多数聚合物以塑料形式使用，加热后可塑形。速记贴士： “Poly”意为多，“mer”意为部分。想象许多回形针连接成一条链——每个回形针是一个单体，整条链就是聚合物。
2. Material Properties | 材料性质
Two properties often confused are hardness and toughness. Mastering their definitions will help you choose the right material for the right job.
硬度与韧性是两种经常被混淆的性质。掌握它们的定义将帮助你为工作选择正确的材料。
Hardness: Resistance to being scratched or indented. A diamond is extremely hard. Memory tip: ‘Hard’ to scratch – if you can’t scratch it easily, it’s hard. Think of a hard exam that is difficult to crack.
硬度: 抵抗刮擦或压入的能力。钻石极其坚硬。速记贴士： “硬”到难以刮伤——如果你不易在表面留下划痕，它就是硬的。想想很难攻克的“硬”考试。
Toughness: The ability to absorb energy and deform without breaking. A tough material bends rather than snaps. Memory tip: Toughen up like a superhero who takes hits without breaking. A tough steak takes a lot of chewing!
韧性: 吸收能量并发生形变而不折断的能力。韧性材料会弯曲而非突然断裂。速记贴士： 像超级英雄那样变得坚韧，承受打击而不断裂。有韧性的牛排需要费力咀嚼！
3. Measuring and Marking Out | 测量与划线
Precision starts with accurate measuring. These tools are your first go-to items in the workshop.
精准始于精确测量。这些工具是你在工作坊中的首选之物。
Steel Rule: A rigid metal strip with engraved markings used to measure length. Memory tip: A ‘rule’ that rules over all measurements – stiff and trustworthy, unlike a floppy tape. Steel rule = steel ruler.
钢尺: 一根带刻度的刚性金属条，用于测量长度。速记贴士： “Rule”掌管一切测量——刚硬可靠，不像软尺。钢尺就是钢铁做的直尺。
Try Square: An L-shaped tool used to check right angles and mark perpendicular lines. Memory tip: You ‘try’ it against a corner to see if it’s square (90°). The ‘try’ in try square means to test.
直角尺: 一种L形工具，用于检验直角和标记垂直引线。速记贴士： 你“try”（尝试）把它靠在角落看是否方正（90°）。这里的“try”就是检验的意思。
Scriber: A sharp pointed tool used to scratch fine lines into metal or plastic. Memory tip: A scribe writes; a scriber ‘writes’ on metal by scratching. Imagine a metal pen that never runs out of ink.
划线针: 一种尖锐的工具，用于在金属或塑料表面划出细线。速记贴士： 文员（scribe）书写；划线针在金属上“书写”时留下划痕。想象一支永不耗尽的金属笔。
4. Hand Tools for Cutting and Shaping | 切割与塑形手工工具
These essential hand tools are found in every engineering workshop. Knowing their names and purposes builds confidence.
这些基本的手工工具在每个工程车间里都能找到。了解它们的名称和用途能建立自信。
Hacksaw: A fine-toothed hand saw designed for cutting metal and plastic. Memory tip: ‘Hack’ suggests cutting with repeated strokes. The fine teeth ‘hack’ their way through hard materials.
钢锯: 一种锯齿细密的手锯，用于切割金属和塑料。速记贴士： “Hack”意味着反复切削的动作。细密的锯齿通过坚硬材料“砍凿”前进。
File: A hardened steel tool with rough cutting ridges used to smooth or shape materials by abrasion. Memory tip: You file your nails to make them smooth – an engineer’s file does the same for metal.
锉刀: 一种带有粗糙切削纹的硬化钢制工具，通过磨削来平滑或塑形材料。速记贴士： 你用小锉刀修理指甲使之光滑——工程师的锉刀对金属起到同样的作用。
Bench Vice: A clamping device fixed to a workbench, used to hold a workpiece securely. Memory tip: A vice grips tightly just like a ‘vice’ grip. Think of being held in a ‘vice-like’ handshake.
台虎钳: 一种固定在工作台上的夹紧装置，用于牢固夹持工件。速记贴士： 虎钳像“钳子”一样紧紧抓住物体。想象一次“虎钳般的”握手。
5. Power Tools and Equipment | 电动工具与设备
Power tools speed up manufacturing but require respect for safety. These two are common in lower school engineering projects.
电动工具能加快制造速度，但需要谨慎对待安全。以下两种工具在初中工程项目中很常见。
Hand Drill: A rotating tool used to bore holes in materials using a drill bit. Memory tip: The drill ‘drills’ by rotating. Image a winding corkscrew – the drill bit spins just like that.
手电钻: 一种使用钻头在材料上钻孔的旋转工具。速记贴士： 钻头通过旋转进行“钻”孔。想象一把旋转的拔塞钻——钻头就是这样转动的。
Soldering Iron: A heated metal tool used to melt solder to join electronic components. Memory tip: ‘Solder’ sounds like ‘sol-der’ – you melt solid solder with an iron. The iron isn’t for clothes; it’s for electronics!
电烙铁: 一种加热金属工具，用于熔化焊锡来连接电子元件。速记贴士： “Solder”（焊锡）发音似“sol-der”——你用烙铁熔化固态焊锡。这烙铁可不是熨衣服的，是焊接电子用的！
6. Forces and Stresses | 力与应力
Structures and components experience different types of forces. Engineers must design to withstand these loads.
结构和部件承受不同类型的力。工程师必须通过设计来抵御这些载荷。
Tension: A pulling force that tries to stretch or elongate a material. Memory tip: ‘Tension’ pulls things apart, just like when you feel tense and your muscles stretch taut. A tug-of-war rope is in tension.
拉力 / 张力: 试图拉伸或延展材料的拉力。速记贴士： “Tension”将物体拉开，就像你感到紧张时肌肉绷紧一样。拔河中的绳子处于受拉状态。
Compression: A pushing force that tries to squash or shorten a material. Memory tip: ‘Compress’ means to press together. Think of compressing a spring or squashing a sponge – it gets shorter.
压力 / 压缩力: 试图挤压或缩短材料的推力。速记贴士： “Compress”意为压在一起。想象压缩弹簧或挤压海绵——它变短了。
7. Simple Mechanisms | 简单机构
Mechanisms change the magnitude or direction of forces. These two are fundamental building blocks of many machines.
机构能改变力的大小或方向。这两种机构是许多机器的基本构建模块。
Lever: A rigid bar that pivots around a fixed point called a fulcrum, used to amplify an applied force. Memory tip: A see-saw is a classic lever. ‘Lever-age’ means gaining advantage – you lift a heavy load with less effort.
杠杆: 绕着一个固定点（支点）转动的刚性杆，用来放大输入的力。速记贴士： 跷跷板是经典的杠杆。你用较少的力就能抬起重物——这就是“杠杆作用”。
Gear: A toothed wheel that meshes with another toothed part to transmit torque and change speed. Memory tip: Gears ‘change gears’ – think of a bicycle. The teeth interlock like cogs in a clock.
齿轮: 带有轮齿的轮子，与另一带齿部件啮合来传递扭矩并改变转速。速记贴士： 自行车“换挡”就是齿轮在起作用。轮齿像钟表里的齿轮一样相互咬合。
8. Basic Electronic Components | 基本电子元件
Understanding what these tiny parts do opens up the world of circuits. Both are found in starter electronics projects.
理解这些微小元件的作用就打开了电路世界的大门。两者都能在入门级电子项目中找到。
Resistor: A component that resists the flow of electric current, measured in ohms (Ω). Memory tip: It ‘resists’ like a narrow pipe resisting water flow. The symbol Ω looks a bit like a squashed pipe.
电阻器: 一种阻碍电流流动的元件，以欧姆（Ω）计量。速记贴士： 它“阻碍”电流，就像狭窄的水管阻碍水流。符号Ω看起来像一根压扁的管子。
LED (Light Emitting Diode): A semiconductor that glows when current passes through it in the correct direction. Memory tip: ‘Light’ signals that it’s on; ‘Diode’ means one-way – current must go the right way. L-E-D: Let Electricity Dance!
发光二极管 (LED): 一种半导体，电流沿正确方向通过时发光。速记贴士： “Light”表示它会亮；“Diode”意为单向导通——电流必须朝对的方向流动。LED：让电流跳舞！
9. Manufacturing Processes | 制造工艺
Turning raw stock into a finished part involves several processes. The names of these operations become second nature with practice.
将毛坯变成成品涉及多种工艺。通过练习，这些操作名称会变得像本能一样。
Sawing: The process of cutting material using a saw with reciprocating or rotating teeth. Memory tip: ‘Sawing’ is simply what a saw does. Picture the back-and-forth motion of a hacksaw – it’s sawing through time.
锯切: 使用带有往复或旋转锯齿的锯子切割材料的过程。速记贴士： “Sawing”就是锯子所做的动作。想象钢锯来回移动——它正锯穿时光。
Drilling: Creating a cylindrical hole using a rotating cutting tool called a drill bit. Memory tip: Drilling makes a round hole, just like a spinning tornado drills into the ground. The drill bit is the tornado.
钻孔: 使用称为钻头的旋转切削工具加工出圆柱形孔。速记贴士： 钻孔产生圆孔，就像旋转的龙卷风钻入地面。钻头就是那龙卷风。
10. The Design Process | 设计流程
Before any making begins, engineers define the problem and plan the solution. These two terms are the starting points of any project.
在任何制造开始前，工程师先界定问题并规划解决方案。这两个术语是所有项目的起点。
Design Brief: A short written statement that outlines the problem, the target users, and the key requirements for a solution. Memory tip: A ‘brief’ is a short summary. Think of a brief as a mission file – it tells you what to achieve.
设计任务书: 一份简短的书面陈述，概述问题、目标用户和解决方案的关键要求。速记贴士： “Brief”是简洁的摘要。把它想象成任务档案——告诉你需要达成什么。
Specification: A detailed list of measurable criteria that the final product must meet, such as dimensions, weight, and performance. Memory tip: A specification specifies exactly what is required. Think of a recipe that specifies all ingredients and amounts.
规格要求: 一份列有最终产品必须符合的可衡量标准的详细清单，例如尺寸、重量和性能。速记贴士： “Specification”具体指明了要求。
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