利用Dremel工具和小钻头，在塑料外壳上钻一个小孔。
With a Dremel and small bit, make a small hole in the plastic housing.
它是黑色的，外壳闪亮由光滑的塑料制成。
该产品为电器，灯具塑料开关外壳。
This plastic enclosure is used for the power or light switch.
虽然是塑料材质，但是手机的外壳做工非常好。
The built quality is very good, though it is made of plastic material.
外壳使用放火阻燃塑料制成，有益环保；
The casing is made by fireproofing plastic and is good for environmental protection.
铁芯外壳可为不锈钢、金属铝、塑料等材质。
Core cover is made out of stainless steel, metallic aluminum, plastic material etc...
铁芯外壳可为不锈钢、金属铝、塑料等材质。
Core cover is made out of stainless steel, metallic aluminum, plastic material etc...
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