Since then, it has been wildly used in the area of aerospacecraft, aircraft, energy system, electronics, automobile, mechanical equipment et al.由于综合性能优异, 问世后很快在航天 、 航空 、 能源 、 电子 、 汽车 、 机械等领域得到了成功的应用....
Objective : To illustrate the killing effects avermectin on Leptotrombidium deliense on tropical coral islands.目的: 观察生物杀螨剂阿维菌素在热带珊瑚岛上对地里纤恙螨成虫杀灭效果.He lay on a coral beach where the cocoanuts grew down to the mellow - soun...
The lower bleeder is made from fused silica, and aluminum carbon and zirconium materials.下分水口均可采用熔融石英 、 铝碳质、锆质材料制成.He had a house there and a dock and a little aluminum boat.他在那儿有一所房子、一个泊船的码头和一艘小铝船。CNC billet aluminum be...