叶轮可用角钢制成.The vanes are made of structural angle iron.这种装置的运转情况与叶轮泵很相似.This device operates similarly to the vane pump.叶轮有开式 、 半闭式和闭式三种, 如图 2-2 所示.Impeller are open, and closed three - Banbi, as shown in Figure 2 - 2 ....
Reduced vigor or " inbreeding depression " is not an invariable consequence of inbreeding.降低生活力或 “ 近亲繁殖的衰退 ” 并不是近亲繁殖必然的后果.This process, however, was not invariable.但是, 这个过程并非始终不变.an invariable rule不变的规则It was his invaria...
虽然贫穷并非城市的特产, 但是可能由于某些地区的人口过多而使贫穷现象在该处较为明显.Poverty is not endemic to cities although, perhaps because of the crowded conditions in certain areas.知足使贫穷的人富有; 而贪婪使富足的人贫穷.Content makes poor men rich; discontent makes rich men...
20公里后她因胃痛而退出了比赛。She dropped out after 20 kilometres with stomach trouble.她多少已经预料到他会中途就退出这门课程。She'd half expected him to withdraw from the course.圣诞节前后剧组中有4个人退出了。Four of the cast jacked it in about Christmas....
Psychometric tests can save organizations from grim and costly mistakes.心理测试能够使组织机构避免犯下损失惨重的大错。The report paints a grim picture of life there.那则报道把那里的生活描绘得很凄惨。Things were pretty grim for a time.事情一度糟糕透了。...
当他划进小港,让小船冲上沙滩时,岸上的灯火都已灭了.All lights were out when he sailed into the little harbor and beached his skiff.火车慢慢驶进了这个距离热那亚以南100英里的地中海小港镇.The train slows for the little Mediterranean port town 100 miles south of Genoa....
cows chewing the cud在咀嚼反刍食物的牛It is forbidden accost others while chewing.决不可嚼着东西跟别人搭讪.She was admonished for chewing gum in class.她在课堂上嚼口香糖，受到了告诫。Daniel leaned back on the sofa, still chewing on his apple.丹尼尔倚在沙发上，嘴里还在嚼着...