SIEMENS固封极柱浇铸过程较长；
真空负荷开关单元采用环氧树脂固封绝缘。
The vacuum load switch unit is fixedly sealed and isolated by adopting epoxy resin.
达到固封、防篡改目的。
一种防篡改固封组件。
KUVAG固封的真空管包封的结合性较差，缓冲能力也差一些。
The combination of vacuum tube encapsulation KUVAG fixation poor, poorer buffer capacity.
这段铁路位于山坡之上，山坡又大都是由水泥固封，四名男子是如何爬上铁路的？
This section of the railway is located atop a hill, hillside and is mostly composed of cement sealing, four men are how to climb the railroad?
我们的真空管包封有自己的特点，是成形模浇铸的，外形尺寸非常稳的，很利于固封极柱的浇铸。
Our vacuum tube Wrapper has its own characteristics, Die casting, size and shape is very stable. Solid very conducive to the closure Poles casting.
有着古老城垣的市镇，如巴黎、布拉格，甚至佛罗伦萨这样，总是自固封畛，因此它们拥有的世界十分有限。
Old walled towns like Paris, Prague, and even Florence are closed in on themselves and hence limit the world that belongs to them.
本文研究了含有缓蚀成分的快固型有机封孔材料及施工工艺。
This paper studys the rapid solidfy organic sealing materials including inhibitor and its implement process.
固井水泥凝固后形成了一个纵向上的水力封隔系统，影响这个系统水力封隔能力的因素包括系统的缺陷和系统的强度。
Casing-cement sheath and formation formed a vertical hydraulic isolation system; hydraulic isolation ability of the system formed by cementing mainly depends on defection and strength of the system.
对低密度水泥固井应以保证水泥石的最低封隔质量为依据确定合理的低密度水泥固井质量标准。
The reasonable well cementing quality standards should be taken the lowest pack quality of lightweight cement as the basis.
套管外封隔器可用于有高压气窜、恶性开漏等复杂情况井的固井，使固井质量有所提高。
The outer casing packer can be used in the troublesome Wells in which the high pressure gas channeling and the loss of circulation occur, to improve the cementing quality.
实践证明它优于常规水泥体系，可提高固井质量和水泥环封隔有效期。
Through practice, the results show that its property surpass regular cement system, and can improve cementing quality and the period of validity of cement sheath plugging.
预防锚孔弯曲的措施；破碎带、裂缝带的钻进技术及封孔固壁堵漏技术。
The paper also presents measures for preventing drilling hole curve, drilling technique in broken zone and fissure zone and technique of sealing hole and pluging loophole.
在尾管内下封隔器，循环确信尾管环空畅通后下入水泥承留器固井。
The liner was cemented by cementing retainer after its annular was assured expedite by setting packer in liner and making circulation.
以4甲基吡啶为原料，在固定床反应器中通过含氧化钒的催化剂发生气固相接触氨氧化反应制备雷米封中间体4氰基吡啶，4甲基吡啶的转化率为99%，4氰基吡啶的选择性为88%，收率为87。
4-cyanopyridine, intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.
以4甲基吡啶为原料，在固定床反应器中通过含氧化钒的催化剂发生气固相接触氨氧化反应制备雷米封中间体4氰基吡啶，4甲基吡啶的转化率为99%，4氰基吡啶的选择性为88%，收率为87。
4-cyanopyridine, intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.
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