第一课
一．It is also important to consider how the design process fits with all functions that must happen to deliver a satisfactory product to the customer and to service the product throughout its life cycle.
考虑设计过程如何，满足所有功能也是很重要的，这些功能必须恰好把满意的产品交给顾客，并在整个产品的生命周期内服务该产品。
二．Such as gears, belt drives, chain drives, shafts , bearings , keys, splines , couplings, sesls , springs , connections (bolted, riveted , welded, adhesive ), electric motors , linear ,motion devices, clutches , and brakes
例如齿轮，传送带，链传动，轴，轴承，键，花键，联轴器，密封圈，弹簧，连接件（螺栓、铆钉、焊接、胶黏剂），电动机，线型的，动力装置，离合器和制动。
三．Functions tell us what the device must do, using general , nonquantitative statements that employ action phrases such as “to support a load ”, “lift a crate”,”to transmit power ”, or “to hold two structural members together ”,etc.
有的功能告诉我们一些装置必须做的事，用大体的，非定量的声明那些使用行动的词组，例如：“支撑一个载体”，“抬起一个箱子”，“传动能量”，或者“把两种构件结合在一起”等。 第二课
四、Tools , knives , chisels, and many agricultural implement components are among these uses.有的功能告诉我们一些装置必须做的事，用大体的，非定量的声明那些使用行动的词组，例如：“支撑一个载体”，“抬起一个箱子”，“传动能量”，或者“把两种构件结合在一起”等。
五、These alloys are nonmagnetic and are typically used in food processing equipment . 这些合金是没有磁性的和典型的用于食品加工装备。
第三课
六、Thermosetting plastics do undergo some changes during forming and result in a structure in which the molecules are cross-linked and formed a network of interconnected molecules . Some designers recommend the terms “linear” and “cross-linked ” in place of the more familiar thermoplastic and thermosetting.
成型期间，热固性塑料结构的确要发生一些改变，造成分子交叉链接，分子之间形成一种网络。一些设计者介绍术语“线形”和“网状型”来代替更为熟悉的热塑性和热固性。
七、The matrix serves to hold the filler in a favorable orientation which is relative to the manner of load and to distribute the loads to the filler.
基料的作用在于使填充料在相对于载荷保持有利的定位，并将载荷分散到填充料上。 第四课(必考)
八、Gears are toothed , cylindrical wheels used for transmitting motion and power from one rotating shaft to another , The teeth of a driving gear mesh accurately in the spaces between teeth on the driven gear . The driving teeth push on the driven teeth ,exerting a force perpendicular to the radius of the gear . Thus , a torque is transmitted , and because the gear is rotating , power is also transmitted .
齿轮是有齿的，圆柱型的轮子，用把运动和能量从一个轴传递到另一个轴,主动轮的齿准确啮合在从动轮的轮齿之间。主动轮的齿推动从动轮的齿,产生一个垂直于齿轮半径的力矩。因此,可以传输扭矩,并且由于齿轮的旋转、还能传递能量。
九、An involute curve by taking a cylinder and wrapping a string around its circumference can be
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