...金属合金材料；内置骨固定材料；二次手术；并发症 [gap=417]Key words]PLA bone-screw； biodegradable materials；metal alloy materials；the field of medicine； a second surgery； complications ..
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metal and alloy materials 金属及合金材料
Because Germany sunshine battery materials can't be absolutely pure, and positive plate metal, lead antimony alloy with the grid frame itself constitutes a battery pack.
由于德国阳光蓄电池材料不可能绝对的纯，且正极板与栅架金属(铅锑合金)本身也构成电池组。
This article focuses on the welding technology of the carbon steel, low alloy steel, stainless steel, cast iron and other metal materials.
本文主要阐述了碳钢、低合金结构钢、不锈钢、铸铁等金属材料的焊接技术。
Micro-cutting technology is the key technology for the precision machining of microstructure which is usually made of non-silicon materials such as metal and alloy.
微细切削技术是面向金属与合金等非硅材料微小型结构件精密加工需求的关键技术。
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