Most of their mileage is in and around town.他们开车大多数时候是在城里和城市周边转悠。A 22 per cent increase in car travel corresponds with a 19 per cent drop in cycle mileage per person...乘车出行者的比率上升了22%，与之相对应，人均骑自行车的行驶里程下降了19%。They are will...
此外,初步探讨了稀土对自熔性合金粉末的作用机理.Besides the mechanism of rare earth on alloy powder was discussed mainly.本文介绍了可熔性聚酰亚胺胶粘剂与其他二种胶粘剂的结构及使用特点.The constituent and properties of the wettable polyimide adhesive and others are introduced...