Most of the lead acid battery shell material is ABS, the car is PP.

铅酸蓄电池外壳材料大部分是ABS，汽车用的是PP。

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The shell material provide different options:spray steel plate, stainless steel, rust-proof aluminum alloy;

提供不同的壳体材质选择：钢板喷塑、不锈钢、防锈铝合金；

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The higher impurity composition of tower shell material was the main reason occurring the crack of this type.

而塔体材料中较高的杂质成分，是引起这种开裂的最主要原因。

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Each shell contains a small amount of explosive material, and some is used to produce whistles and other effects.

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In order to clone a human, scientists would remove the nucleus of an egg and extract its genetic material, leaving just its shell.

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In this research the scientists created a synthetic viral shell, but lacking its pathogenic RNA interior - the genetic material the virus uses to replicate itself.

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