A down - hole autotracking well pumping unit different from the conventional pumping unit was designed.针对抽油技术的现状和存在的问题,设计了一种不同于有杆抽油方法的井下自动跟踪式抽油装置.It is autumn and they are pumping water out of the swimming pool.入秋了, 他们正在...
Unlike other trees, it doesn't taper very much. It stays fat all the way up.和别的树不同，它不是越往上越细，而是上下一样粗。If the charcoal does fail to light, use a special liquid spray and light it with a long taper.要是木炭确实着不了的话，使用一种特殊的液体...
Rub out chalk marks with an eraser.用黑板擦擦掉粉笔字迹.He rubbed out the last sentence on his paper with his eraser.他用橡皮把试卷上的最后一句话擦掉了.Yes, I have your eraser, too.是的, 我还拿了你的橡皮....
She slung barbs at me.她说了些讥刺我的话.I would no longer uncomplainingly accept their barbs or allow their unaccountable power to go unchallenged.我不会再毫无怨言地洗耳恭听他们带刺的话,或让他们的不负责任的权力不受到挑战.Barbed wire: Twisted strands of fence wire ...
He walked with something of a swagger.他趾高气扬地走着。He emerged with a macho swagger.他大摇大摆地走了出来.Let my nephew and Goldthred swagger about their wager as they list.让我外甥和戈德斯雷德去信口开河地打赌,随他们的便吧....
然后这些卵细胞被冻存,当需要使用的时候再解冻.The eggs were then frozen and later thawed for use.卵细胞里面的开放碱基对可以被CTCF识别.And open bases can be recognised by CTCF in the egg.卵细胞发育成鲸体就是其中一例.An egg cell producing the body of a whale is one....
The huntsmen rode fast, chasing after the fox.猎人们疾驶, 追捕那只狐狸.The huntsmen were mounted and ready.猎手们骑上马,准备好了....a confrontation between huntsmen and saboteurs.狩猎者和反捕猎活动人士的对峙The huntsmen rode fast,chasing after the fox.猎人们...