Some of the parts are scrapped because of worn tooling, bad equipment, or human error . 由于工具磨损，设备损坏或人为错误而报废了一部分零件。
The garden was soon littered with chunks of metal which had once made up a lawn-mower . 不一会儿，花园里七零八落到处都是原割草机的金属零件儿。
To produce satisfactory lead parts, the lead alloys should meet certain material specifications . 为能生产合格的铅零件，铅合金必须符合一定的材料规格。
Gold plating is often the last process a part experiences before assembly or end use . 镀金往往是一个零件在装配或最终使用之前所经受的最后一道加工工序。
The coatings are sprayed onto the components being analyzed by using aerosol cans or compressed-air spray guns . 涂料是用按钮喷雾罐或压缩气喷枪喷到所要分析的零件上去的。
If fumes reach the charging units serious corrosion of metal parts can be expected and this can cause trouble . 如果酸雾触及充电器，金属零件将发生严重腐蚀，并可能引起故障发生。
In general, gimbal parts of simple, massive shapes will offer greater potential for dimensional stability . 通常，具有简单而结实的形状的框架零件提供良好的尺寸稳定性的可能性较大。
The carrier material also provides electrical insulation between the gage and the component after the gage is mounted . 在应变片安装之后，传导体又成为应变片与零件之间的电绝缘体。
Shops cater for the do-it-yourself craze by offering consumers bits and pieces which they can assemble at home . 商店为了迎合“自己动手”的狂热心理，为消费者提供他们可以在家里组装的零件。
Typical machining tolerances on this table, which was designated as model a, were in the range of 0.001 to 0.0001 inch . 这种后来定名为A型的转台，其典型零件加工公差在0001到00001时之间。
