A beneficent microclimate brings out the camellias betimes ( John Russell )有利的小气候使山茶花提前开放 ( 约翰罗素 )He rose betimes in the morning.他一大早就起床.She writes local items betimes.她有时写点地方性文章.He started betimes in the morning.他一大早就上路...
锑的百分含量由各蓄电池生产厂自己掌握.The percentage of antimony may be left to the battery manufacturer.含锑的铅较化工铅好些,由于它有更好的抗蚀性及强度.Antimonial lead is preferable to chemical lead because of its greater corrosion resistance and strength.一种蓝灰色...