查询词典 seal

The circlip lead seal packer with sand control is developed for ensuring the normal production of big borehole sand control well.

为保证大井眼防砂井正常生产，研制了卡簧式铅封防砂封隔器。

The forming shoulder with corner-seal circular section for pocket making, filling and sealing machine was studied.

研究了用于立式制袋－充填－封口机的圆形偏置翻领成型器。

Cc of my blood, and seal it up in Xi'an ancient circumvallation.

具体实施：我携带一块儿成都的老城墙砖到西安，在砖上钻孔 12 个，注入我的血200CC，将其封存到西安

If the boiler don't close the check valve, then must prevent back flowing to the boiler, valve clack mould weight and buffering piston can seal under gravity action, they make steam and condensed water can't flow back to the boiler under the low air pressure.

如果锅炉没有关闭截止止回阀，则必须防止回流到锅炉上，阀瓣压铁和缓冲活塞，在重力的作用下，能够迅速实现密封，使得蒸汽和冷凝水即使在低压下也不会回流到锅炉里。

ZL03 2 354312.The innovations include: automatic self-closing and reliably sealed valve structure: the design of duplex valve clack with pilot valve to tackle the problem of reverse seal structured valve being difficult to be opened; an automatic drain control device to automatically drain the remaining water from the hydrant; protective plate provided between the hydrant body and the valve block to serve as a connection between the hydrant body and the valve block, which is the first one to be damaged when the ground hydrant is clashed, and prevent pulling-off of the whole above-ground part of the fire hydrant, so as to properly protect the main parts from any damage. The self-closing and reliably sealed valve now prevents drain of water, and only the damaged protective plate is needed to be replaced before immediate re-operation. Thus the repair work after clashing is very easy and simple.

其创新点为：具有能自动关闭并可靠密封的阀门结构：采用有先导阀复式结构阀瓣设计，解决反向密封结构阀门开启沉重费力的难题；设计自控排水装置，能自动排除栓体内余水；在栓体和阀体之间设计撞裂板，它既起到连接栓体和阀体的中介作用，又可在地上消火栓被撞击时率先破裂毁坏，并使露出地面的栓体不见整体脱落，有效保护各主体部件的完好无损，而此时阀门的自闭式结构可靠密封阀门阻止水源外泄，修复时只需更换损坏的撞裂板即可立即复位投入使用，使被撞后的修复工作变得十分轻松简便。

In 1966 Smith has proposed the theoretical model of Fault Sealing, since then, many scholars have done a lot of work in estimating and predicting the fault seal in clastic strata, and have made great progress of the study during last 10 years.

从1966年Smith建立断层封闭性理论模型之后，国内外许多学者在评价预测断层封闭性方面做了大量的研究工作，并在近10年取得很大进展，提出了许多有效的定性或定量评价方法。

Tripod and other inscriptions on the bronzes of the Zhou Dynasty records institutions and canonized, ritual, conquest, such as historical facts, but also put the Western Zhou period Large seal script Letter to the generations, forming a very high aesthetic value of the art of calligraphy Clementi, ding also more value out of the ordinary and become even more important than other bronzes of historical relics.

鼎和其他青铜器上的铭文记载了商周时代的典章制度和册封、祭祀、征伐等史实，而且把西周时期的大篆文字传给了后世，形成了具有很高审美价值的金文书法艺术，鼎也因此更加身价不凡，成为比其他青铜器更为重要的历史文物。

Remove the gasket seal on the plane of lower barrel, then remove clevis pin and cotter pin on the rod

移除地下埋管平面上的密封垫圈，拆除连接套上的销轴和开口销，然后拆除上阀杆。

Place gasket seal on the lower barrel, install upper valve rod and rod coupling, fixed by clevis pin and

把密封垫圈放在地下埋管上，安装上阀杆和连接套，用销轴和开口销固定住。

The test tube is closed at one end with a hydraulic seal .

试管的一端为水封所封闭。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。