Mr. Darwin also teaches PE.达尔文也教体育.( Since then Perkin - Elmer has changed name twice, first to PE and then to Applera. )( 此后 伯金—艾尔莫 两次易名;开始改为PE,后来改为阿普莱拉. )Premature Ejaculation ( PE ) is most common sexual dysfunction i...
Pulmonary embolism ( PE ) is one of the common clinical pathological syndromes.肺 栓塞 是常见的临床病理综合征之一.This paper modified silane crosslinked polyethylene ( PE ) insulant for power cable with ethylene - vinyl acetate copolyme...
Crankshafts, one of the major parts of piston engines, are motionpistonmotion.曲轴是活塞式发动机的主要零部件之一, 加工工艺复杂、要求高.Automobile and motorcycle spare parts - crankshafts, connecting rods, shafts, power steering shafts.汽机车零件 - 曲轴 、...