4h meaning in English
复方益康宁
Examples
- A analytical model of 4h - sic mps was given
提出了一种新的4h - sicmps解析模型。 - Bolt , bihexagonal head . iso thread : 4h class
十二角头螺栓. iso螺纹. h级 - Bolt , bihexagonal head . iso thread : 4h class , fine pitch
十二角头螺栓. iso螺纹.细牙h级 - Surface hardness is equivalent or better than to 4h pencil
表面硬度相当于甚至好于4h铅笔。 - Bolt , bihexagonal head , necked shank . iso thread : 4h class
带颈杆十二角头螺栓. iso螺纹. h级