Precipitates are usually collected by centrifugation at intervals.常常是用离心法分段收集沉淀的.Try to get into the habit of eating at least three small meals a day, at equally spaced intervals.尽量养成每天至少吃3顿小餐的习惯，而且每餐的间隔要相同。She began to ...
George struggled wildly, going under and resurfacing at regular intervals.乔治疯狂地挣扎，不断在水面上浮浮沉沉。Make a point of backing up your files at regular intervals.一定要定期备份文件。The cartridge must be replaced at regular intervals.弹药必须定时...
Rationing had put an end to a surfeit of biscuits long ago.定量供应很久以前就结束了饼干过剩的状况。The night shift should have been safely down the mine long ago.上夜班的矿工应该早就安全地到达井下了。Once long ago he had considered becoming a state trooper.很久...
Blow - hole colostomies were closed on postoperative day 10, the investigators say.研究者报道小切口结肠造瘘口在术后10日闭合.Slowly he closed the book.他慢慢合上书。He closed his eyes and lay still, trying to purge his mind of anxiety.他闭上眼睛躺着不动，试图...
Silicosis is occupational disease for certain, is coal silicon ill?矽肺肯定是职业病, 煤矽病?Paper describes the three diagnosed as silicosis cases of dental laboratory technician.论文描述了三名确诊为矽肺病的牙科实验室技师的病例.Anyone suspected of sufferi...
She again found herself unable to reprove him.她又一次发现自己难以开口责备他.I suppose I deserve that you should reprove my shortcomings.你指责我的缺点,这是完全应该的.Your own wickedness will correct you, And your apostasies will reprove you.19你自己的恶...
...the Red Cross emblem.红十字会徽章That emblem became recognized in the nineteen - twenty - nine Geneva Convention.这一标志在1929年的日内瓦会议上得到承认....the emblem of the Soviet Union.苏联国徽The eagle was an emblem of strength and courage.鹰是...