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- The suction head for the vacuum cleaner improves cleaning performance. 真空吸尘器的吸入压头改善了吸尘效能。
- Negative suction is the commonly used technique for fracturing fluid preparation. 真空抽汲是压裂液普遍采用的配制工艺技术。
- Abstract: The advantages and disadvantages of siphon filtering pool in water plant were analyzed, and improvement measures were proposed in terms of increasing reverse wash suction head and lowering the reverse water requirement. 文摘:通过对自来水厂虹吸滤池的优点及弊端的分析，指出了提高反冲洗水头、降低反冲洗耗水量的改善措施。
- The rating of the drive and the pump’s nett positive suction head (NPSH) requirements shall be such that the pump is capable of a flow rate 10% in excess of the maximum flow rate required. 评级的驱动器和水泵的网络技术的积极吸头（汽蚀余量）的要求，应，例如，该泵是有能力，流速为10 %25 ，超过的最高流速需要。
- round die negative suction formation process 圆模负相成型工艺
- The sheet thickness a horizontal collator can handle is limited only by how powerful the suction heads are. 薄板厚度的横向整理可以处理是有限的，只有如何强大的吸力元首。
- Suction Head Device for Pump-Type Dredger 泵吸挖泥船的吸头装置
- Suction head of hydraulic turbine; 水轮机吸出高程;
- Available net positive suction head 有效净正吸入压头
- water pump net positive suction head 水泵汽蚀余量
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- Consideration on Determining Suction Head of Hydro Turbine 确定水轮机吸出高度的探讨
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤，碰着了头。
- Their criticism was not negative. 他们的批评并不是负面的。
