lowering and raising course 下沉上浮过程
electrode lowering and raising 电极升降
procedures of lowering and raising 沉浮过程
electrode lowering and raising device 电极升降装置
raising and lowering operator 上升及下降算子
boom raising-and-lowering gear 吊臂升降机构
raising and lowering 上升和下降
Experiments and analysis results show that lowering and raising stability mainly rests with the platform underwater depth, structural characteristics, water entry Angle, etc.
实验和分析结果表明,平台在下沉和上浮过程中的稳定性主要与吃水深度、平台的结构参数以及入水角等因素有关。
Raising and lowering ships between the Atlantic and Pacific oceans, which differ by 85 feet in elevation, requires vast amounts of increasingly scarce fresh water.
由于大西洋和太平洋之间存在85英尺的海拔高度差,在两大洋中抬升和降低船只需要越来越多的大量稀缺淡水。
For McDonald \ \ \ \ \ \ \ 's - and the industry at large - continual technological improvements play a vital role in lowering costs, raising sales and retaining customers.
对麦当劳几大量的这类型企业来说,继续进行技术改进是降低成本、提高销售和留住顾客的关键。
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