He umpired baseball games.他担任棒球比赛的裁判。He umpired in the tennis match.他在网球比赛中担任裁判.I’ve umpired a cricket match for them.我当过他们的板球比赛的裁判。He umpired for school football matches until he was in his late 50s.他担任校际足球比赛的裁判一直到年近花甲。...
他们为了探寻铀矿走遍了全国.They went over nationwide in search of uranium mines.“辛托6”的铀矿体产于不整合面之下变质甚深的粒玄岩中.At Scinto 6 uranium occurs in much altered dolerite below the unconformity.沥清铀矿和铜铀云母比纯铀的放射性强得多.Pitchblende and chalcolite are ...
将试瓶浸入恒温水浴中.The sample flask is immersed in a constant temperature bath.这是许多恒温箱的基本工作原理.This is the basic operating principle of many thermostats.恒温器可用来调节室内温度.Thermostats can be used to regulate the temperature of a room....
臭氧是一种非常活跃的氧气形态。Ozone is a highly reactive form of oxygen gas.他是当下仍旧活跃的最有闯劲、最具想象力的爵士乐钢琴师之一。He's one of the most dynamically imaginative jazz pianists still functioning.他是活跃的双性恋者。He was an active bisexual....