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When a buried pipeline goes through permafrost zone, thermal action between medium in pipeline and permafrost occurs and causes the frozen earth thawing, so the thaw settlement forms around the pipeline.
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摘要埋地油气管道通过永冻土地带时,由于管内介质与周围的冻土发生了热力作用,使冰土解冻,在管道周围形成融化圈。 |
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When a captain got hold of a pilot of particularly high reputation, he took pains to keep him.
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每逢一个船长用到一名名声特别高的掌舵者,他必须千方百计把他留住。 |
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When a car is scrapped, the battery should be consigned to an acid-proof container.
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拆卸汽车时,电池应放置在耐酸容器中。 |
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When a car is stopped at a traffic light, for example, the signal can suddenly become noisy and distorted.
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举例来说,当车子停在红绿灯前时,讯号可能突然变得吵杂而失真。 |
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When a car's rear end doesn't want to go around a corner and tries to overtake the front end as the driver turns in towards the apex.
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是指当车手试图在顶点过弯时,车身尾部无法沿着正常轨迹线转过弯道,并且试图甩过车身前部。 |
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When a catalytically active enzyme forms a complex with a cofactor a holoenzyme is produced.
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酶蛋白和辅助因子两者结合成完整分子时,形成具有活力的全酶。 |
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When a caterpillar sheds its final exoskeleton and mutates into a chrysalid, it is already well on its way to becoming a butterfly.
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当毛虫脱掉最后的外骨骼,变成蝶蛹时,它已踏上了化蝶之路。 |
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When a cell needs to make new proteins, the helix untwists and the rungs split apart so the cell's machinery can read the code.
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当细胞需要制造新蛋白质时,双螺旋就拆解开来,其中的横梯也一分为二,让细胞里的装置可以读取编码。 |
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When a change comes, some species feel the urge to migrate.
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当环境突变来临时,一些物种迫切于转移。 |
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When a character reaches a suitably high level, level 40 or higher it can start specializing in skills to become a hero class as found in Warcraft III.
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当一个角色达到一个比较高的等级时(40或更高),就可以开始对技能的专精从而成为一个英雄职业,如在魔兽3中所看到的一样。 |
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When a charged particle is in a magnetic field, it tends to travel along that field's lines of force, spiralling as it goes.
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当一个带电微粒在磁场中时,它会倾向于沿着磁力线螺旋运动。 |