Technical challenges remain, including integrating a leakproof backup battery into the device and miniaturising the FREE-D’s control electronics.
存在的技术难题还很多，包括将一个防漏电的备用电池集成到心泵内，还有缩小FREE-D电子元件的体积。
All awl tube thread pre-coated PTEF leakproof gum, with excellent sealing property.
所有锥管螺纹预涂聚四氟乙烯防漏胶，密封性能好。
According to technical requirements of filming plastic sheet for leakproof saline, a soil cutting and throwing device was developed.
根据盐田防渗塑膜铺底所需覆土量的技术要求，设计了盐田防渗塑膜铺底专机(简称：盐田铺膜机)的切抛土部件。
The invention relates to a leakproof structure and a leakproof method for a reinforced concrete pool or well in the civil engineering.
本发明涉及一种土木工程中的钢筋混凝土池井无渗漏结构和防渗漏方法。
The outlet of the water faucet is provided with a leakproof valve with a spring, the filter screen is arranged at the inlet of the water faucet.
水龙头出口处设置有带弹簧的止漏阀，过滤网设置在水龙头进口处。
This paper has reviewed the varieties, properties and applications as well as the domestic and foreign markets of HDPE leakproof-lined materials.
综述了国内外高密度聚乙烯防渗漏衬垫材料的品种、性能及应用情况。
The paper states a leakproof control system of safe deflated pressure of thevaporous equipment by analyses and calculations with typical examples.
本文通过典型实例的分析、计算，提出汽化设备的一种无泄漏安全泄压控制系统。
The upper end of the leakproof valve is provided with a leakproof valve seal ring, and a seal ring is arranged between the water faucet and the liner.
止漏阀的上端设置有止漏阀密封圈，水龙头和内胆之间设置有密封圈。
The cementing job quality was successfully controlled by means of carrying out the cementing design plan of wall shear stress and the leakproof method by raising slurry viscosity.
通过实施壁面剪应力固井设计方法和提高水泥浆粘度的防漏方法，成功实现了对固井质量的控制。
The present invention belongs to a leakproof leaking stoppage construction technology, including two portions of new type water-proofing cementing agent and construction technique.
本发明属于建筑领域中的一种防漏、补漏施工技术。该施工技术包括新型防水粘结剂和施工技术两部分。
It has obvious actions of leakproof and lost circulation in low pressure absorbent formation because of containing a lot of foam with high shear force and high structural viscosity.
由于含有大量高切力、高结构粘度的泡沫，在低压渗漏地层有显著的防漏堵漏作用。
The leakproof hydraulic damper is mainly composed of an inner cylinder, an outer cylinder, a piston which is provided with one-way valves, overflow members, adjustment rings, seal rings, etc.
它主要由内筒、外筒、带有单向阀的活塞、溢流件、调节环，密封圈等组成。
The leakproof hydraulic damper is mainly composed of an inner cylinder, an outer cylinder, a piston which is provided with one-way valves, overflow members, adjustment rings, seal rings, etc.
它主要由内筒、外筒、带有单向阀的活塞、溢流件、调节环，密封圈等组成。
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