翼缘和腹板都有令人满意的延伸率 ( 即28% ).Both flange and web exhibited satisfactory elongation characteristics ( i . e . 28 % ).研究了对该膜强度和延伸率的影响因素.The several main factors of influences on strength and elongation. was analysed.柔性好, 高延伸率,...
The percentage of antimony may be left to the battery manufacturer.锑的百分含量由各蓄电池生产厂自己掌握.Antimony abounds in out country.我国盛产锑.Antimony adds to the rigidity of the casting.锑能增加铸件的硬度....