Metal Technics & Design 金属工艺及设计
Metal Technics & 金属工艺及设计
metal technics &design 金属工艺及设计
Metal Technics &am Design 金属工艺及设计
Metal Technics and Design 金属工艺及设计
Metal Technics andam Design 金属工艺及设计
metal science and metal technics 金属与金属工艺学
The tow processes of reducing 9-fluorenylformaldehyde to 9-fluorenyl-methanol are studied by using metal hydride and formaldehyde. The evaluation of the technics is given at last.
阐述了分别用金属氢化物、 甲醛作还原剂将9-芴甲醛还原为9-芴甲醇的工艺，并对工艺技术进行了评价。
Injection process of machining technics demanding, the demand is higher, metal material strength relative to some low.
注射工艺苛刻、机加工工艺要求较高，相对于金属材料强度有些低。
This paper summarize principle and technical characteristics of precession welding machine, and emphases on precession welding technics of thin metal wire on pellicular PCB base?
概述微点焊接的工作原理和技术特点，以及用于薄膜铂电阻温度传感器中的薄膜基板上细小金属引线的微点焊技术。
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