1、

The stratospheric aerostat permanently stayed in the complex space environment with thin air and strong effect of ultraviolet radiation and ozone. Excellent properties like lightweight, high strength, tear resistance, high sealing and anti-aging are the key technical requirements of envelope material.

平流层浮空器长期驻留于空气稀薄、紫外线辐射和臭氧作用强的复杂空间环境中,轻质、高强度、抗撕裂、高阻隔和抗老化是其蒙皮材料的关键技术性能要求。

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2、

Sealing performance is an important technical index which is closely related with product quality.

密封性是一项重要的技术指标,与产品质量关系很大。

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3、

Also, the simulating test of shaped-charge shooting, the sealing test with cement plug for one well, and the cementing operation of 5 wells with easy loss circulation have been conducted.

此外,还进行了聚能射孔模拟试验、1口井注水泥塞堵漏试验和5口易漏井的固井施工。

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4、

Test results of the spring's fatigue strength, crack resisting limit, sealing performance, vertical and lateral stiffnesses, and measurements of the vertical stiffness of the air spring device are given.

给出了空气弹簧疲劳、破裂极限压力、气密性能、垂直刚度、横向刚度特性试验结果及空气弹簧装置垂直刚度测试结果。

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5、

Design, Calculation and Test for Engine Valve Guide Sealing Structures

柴油机气门导管密封结构的设计、计算和试验研究

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6、

Research on Double_sealing Test of Ball Valve for High Speed Turbine

高转速水轮机球阀双密封试验研究

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7、

Sealing Analysis and Test for Nuclear Vessel of PWR

压水堆核容器的密封分析与试验

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8、

Based on Biot's theory of consolidation, the pressure tunnel with partial sealing in saturated soil is investigated by developing the partial sealing boundary conditions.

基于Biot固结理论,研究分析了饱和土体中半封闭压力隧洞问题,建立了压力隧洞的半封闭边界条件。

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10、

Pressure control System and Sealing Ways for Expansion forming of Tee Tube

三通胀形压力控制及密封方法

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11、
12、

The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.

它将封隔器与伸缩管设计成一体,采用V形膨胀石墨密封圈组成密封系统,确保伸缩管热力伸长时封隔器的密封性。

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13、

Analysis on causes of sealing failure of ram BOP and corresponding preventive measures

闸板防喷器密封失效原因及对策分析

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14、
15、

Influence of ambient temperature on determination for sealing reaction efficiency

环境温度对密封反应效率测试产生的影响

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16、

The result shows that this type of gasket has excellent sealing performance, leakage rate increasing with increase of temperature as exponent function of temperature conforms to the equation of the porous media model.

研究结果表明,该垫片具有较好的密封性能,泄漏率与温度成指数关系,随温度的升高而增大,符合多孔介质模型的方程。

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17、

Influence of temperature on casing joint sealing;

温度对套管接头密封性能影响;

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18、

The experiment which uses the established sealing cabin temperature and noise system researches on the rats hippocampal positive reacting cell-number of glutamate ( Glu) immunity and the light density.

利用密封舱建立的温度和噪声实验系统对大鼠海马谷氨基酸(Glu)免疫反应阳性细胞数和光密度进行了实验研究。

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19、

Poor sealing effects of temperature probe of scroll of bearing box at air inlet side of the air compressor results in oil contamination of following pipeline of air compressor.

由于空压机进气侧轴承箱蜗壳温度探头密封效果不好,使空压机及其后续管道受到油污染。

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20、

Provide pin to avoid sealing at midway and protect seal part of packer, enhanced reliability of plugging string.

设计有防中途坐封的销钉,保护封隔器的密封件,提高了封堵管柱的可靠性。

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