它们有哑铜的，古铜的和镀银的。They are available in polished brass, antique brass or silver-plate.萨尔瓦多每年生产10万吨纯铜。El Salvador produces 100,000 tons of refined copper annually.他用铜、不锈钢和银制造装饰性器皿。He makes decorative vessels in copper, stain...
...the 100 metres backstroke.100米仰泳比赛Sometimes I use breaststroke, backstroke, and free style.有时游蛙泳 、 仰泳和自由泳.I get water in my ears when swimming the backstroke.仰泳时,我耳朵总是进水.Peter : Tedhere are freestyle, backstroke, butt...
It is cinnabar and dickite, kaolinite petrochemical and hydrothermal alteration of the product of mercury.它是辰砂与迪开石 、 高岭石化热液蚀变及汞矿化的产物.Aim To investigate the sorption mechanism of chlorobenzenes on CTMAB modified kaolinite...
激素替代治疗非常重要，应该及早开始。Hormone replacement therapy is very important and should be instituted early.激素植入物被用作生长辅助剂.Hormone implants are used as growth boosters.分泌的激素进入到血液中.Hormones are secreted into the bloodstream....