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- This paper analyses the cause of exceed radon eduction in a uranium mine, suggestes the radon control measures in order that its radiate strength in underground mine air reaches allowed level. 本文分析了某铀矿井氡超量析出的原因,提出了控制氡析出的措施,从而使矿井空气中总放射强度达到国家规定的容许水平。
- Industrial pumps. Centrifugal, mixed flow and axial pumps. Allowable level for mechanical vibrations. 工业泵。离心泵、混流泵和轴流泵。允许的机械振动级。
- Sophisticate cooling techniques must be employed to ensure that the turbine blade metal temperature is kept at an allowable level. 为保障工作叶片安全可靠的工作,必须采取有效的冷却措施。
- No one is allowed to get his ticket out of turn. 任何人都不准不按次序买票。
- Flashes are not allowed to be used in this museum. 这个博物馆里不准使用闪光灯。
- I'd like a room on the upper level. 我想要楼上的房间。
- The road is too narrow to allow the passage of gondola. 这条街太窄,大型货车不能通过。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- He allowed that I had the right to appeal. 他同意我有权上诉。
- Cars are not allowed to go through the city centre. 禁止汽车从市中心穿行。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- The Press were not allowed to attend the trial. 新闻界人士不得出庭旁听。
- Keep a level head and phone the Fire Department. 保持冷静,打电话给消防署。
- I was allowed once into his inner sanctum. 我有一次获准进入他的内室。
- Those boys have been allowed to run wild. 那些男孩子无人管教肆无忌惮。
- A football field should be level. 足球场地应该平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- The ship was allowed to unload cargo on the wharf. 那艘船被允许在码头上卸货。
- Please open a window to allow the air to circulate. 打开窗子让空气流通。