One of the first steps in the design of any product is to select the material from which each part is to be made.
任何产品在设计时第一步就是选择产品每个部分的构成材料。
The plastic noumenon includes a voluble part, each of two ends of the voluble part is provided with a integrated stop part, the conducting material is wound around the voluble part.
所述塑料本体包括一缠绕部分，该缠绕部分的两端分别一体设有一限位部分，导电材料缠绕在缠绕部分上。
In orderto minimize the weight of each part or system of the car, in the early stagesof development, design, process and material three must be considered.
为了最大程度地减少汽车每个部分或系统的重量，必须考虑三个因素：设计、工艺和材料，在开发的早期阶段就必须想到这些。
The main material source comes from the north, and there are 4-5 former material sources nearly parallel to each other in the northern part of the basin.
北部物源供给明显，占主导地位。盆地北部4 - 5个古物源呈几乎平行的状态由北向南分布。
The main material source comes from the north, and there are 4-5 former material sources nearly parallel to each other in the northern part of the basin.
北部物源供给明显，占主导地位。盆地北部4 - 5个古物源呈几乎平行的状态由北向南分布。
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