It is critical calculating blanking step in normal single row optimum layout.普通单排优化排样中冲裁步距的计算非常关键.Expounded punching, blanking, bending modulus of the composite structure design and principle.阐述了冲孔 、 落料 、 压弯复合模的结构设计及工作原理...
Islanding detection is a mandatory function for grid - connected photovoltaic ( PV ) converters .孤岛检测是 光伏 并网逆变器所必备的功能.A new method for islanding detection based on active current disturbing is proposed in this paper.本文提出...
然后把片子浸入含有很多碘的墨水中.The sheet is then dipped into an ink solution rich in iodine.氯和碘的化合物的蒸气是有毒的.The vapour of the choro and iodo compounds in particular, can be toxic.例如,硫代葡萄糖苷能干涉甲状腺对碘的吸收.Glucosinolates can interfere with u...
洛维特是个威严的高个男人，蓄着灰白的八字胡。Lovett was a tall, commanding man with a waxed gray mustache.他是个又高又胖、头发灰白的男子。He was a tall, stout man with gray hair.她那灰白的头发一缕缕地披散在脸旁。Her grey hair straggled in wisps about her face....
All these ligneous plants are imported from Russia.这些木本植物都是从俄国进口而来。Description: Evergreen, ligneous, large lianas; stems twisted.形态特徵: 常绿 、 木质藤本; 茎扭旋.Sofa can be cloth art , cany, bamboo is ligneous , should sit comforta...