美国环境保护署敦促承建商对1978年前建成的房屋进行铅安全的整改工作，把正在施工的房间隔离开，同时使用真空蒸发器和面具防止铅尘弥漫。
The U. S. Environmental Protection Agency obliges contractors to do lead-safe renovations on pre-1978 homes, isolating rooms where work is under way and using special vacuums and masks for dust.
三个星期前，卡佩罗利用英足总的权利真空，删掉了他合同中的一个条款，结果就是给予了双方为期两个星期的窗口期来终止他们之间的合同。
Three weeks ago Capello exploited a power vacuum at the Football Association to remove a clause in his contract, which gave both sides a two-week window to sever their deal.
这些真空包装的食品在纽约州有售，人们发现在竹荚鱼加工处理前没有进行内脏处理。
The vacuum sealed plastic packs of the fish were sold in New York state and were found to have been uneviscerated before processing.
在晶体管发明前，计算机采用真空管作为逻辑原件。
There were computers before the transistor; they used vacuum tubes as logic elements.
为了最小化油蒸汽的回流，一些冻干机在真空泵和前箱间设计了弯曲的管路。
In order to minimize oil vapor migration, some lyophilizers are designed with a tortuous path between the vacuum pump and chamber.
采用真空油炸前预处理技术研究了护色工艺对真空油炸马铃薯片品质的影响。
The manuscript studied the effects of color preservation technology on quality of vacuum fried potato chips by using pretreatment technology before vacuum frying.
由于罗茨泵是一种无内压缩的真空泵，通常压缩比很低，故高、中真空泵需要前级泵。
As the Roots pump is a non-vacuum inside the compression, the compression ratio is usually very low, so high, medium and vacuum pumps need to pump before.
介绍了汽车真空助力器前外壳成形工序和切舌模具，论述了模具结构特点和工作原理。
The shape of the front crust of the car vacuum booster is complex and it needs many working steps to achieve the part.
本机组采用罗茨泵作为主泵，以旋片式真空泵作为前级泵。
The set takes Roots pump as its main pump and spinning vacuum pump as pre-stage pump.
本文简要介绍了用于塑料制品喷涂前的真空等离子表面处理技术。
This paper briefly introduces vacuum plasma surface treatment technique for plastic products pretreatment.
灌装前对酱油进行温度提升或真空脱气处理可以有效避免贮存期的胀桶现象出现。
If the soy sauce is heated or is vaccumized before filling, the problem of barrel-swelling could be prevented efficiently.
真空室大的前开门便于日常操作和维护。
Large front door is convenient for daily operation and maintenance.
在前级泵与主泵中间串联一个电磁真空充气阀，随前级泵开关而启闭。
In between, an electromagnetic vacuum inflation valve is installed in series, which opens and closes with the switch of the pre-stage pump.
在涡轮分子泵的前级侧充气，能强制使碳氢化合物立刻通过涡轮分子泵流入真空室。
Turbo molecular pump in the first grade side of the inflatable, can force the hydrocarbons into the immediate adoption of turbo-molecular pump chamber.
在真空系统中，这种泵可单独使用，或作为增压泵、扩散泵等的前级泵。
Use: May serve as the transmission in the oil transfer system, the booster pump.
在正式真空辅助压浆前，测试孔道密封情况。
Before the formal vacuum-assisted grouting, we should test the sealed case of the pore.
该奶酪可追溯至公元前1615年，真空包装在神秘的青铜时代的人物身上，被埋葬在塔克拉玛干沙漠中，这是目前为止发现的最古老的奶酪。
The cheese dates back to 1,615BC and wasessentially vacuum-packed with the bodies of the mysterious Bronze Age peoplewho were buried in the Taklamakan Desert, making it the oldest ever recovered.
真空感应炉真空机组中的前级泵，历来使用滑阀泵。
Rotary piston pumps always used as backing pumps of vacuum systems in vacuum induction ovens.
可单独作低真空泵用，也可与其他高真空泵组合作前级泵用；
Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps.
可单独作低真空泵用，也可与其他高真空泵组合作前级泵用；
Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps.
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