And there is less metal than plastic.
金属板的防水塑料外层。
Seawater is in any case less reflective of radar waves than metal.
无论如何，海水对雷达波的反射性都不如金属。
减少金属零件的磨损。
Others struck in silver-plated base metal will cost much less.
其他只是镀银的将比较便宜。
The promoting effect of metal filler played leading role when its use amount is less;
当金属的加入量少时，促进起主导作用；
The metal layer (4) is made by metal which murray rigidity is less than 3.
金属层（4）由莫氏硬度为3以下的金属形成。
The elongation of joints was only 3.18%, less than 25% that of base metal.
搭接接头的塑性较差，伸长率仅有3.18%，不及母材伸长率的25%；
The elongation of joints was only 3.18%, less than 25% that of base metal.
搭接接头的塑性较差，伸长率仅有3.18%，不及母材伸长率的25%；
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