In this paper the spiral velocity of eccentric annulus with inner pipe turned is analysed and computed.
本文分析计算了石油钻井工程偏心环空中内管转动的螺旋流动。
The preparation method comprises preparation of the inner pipe and connection of the inner pipe and the outer pipe.
本发明所述的制备方法包括内管的制备和内、外管连接。
To monitor the inner pipe leakage situation of the pipe jacket vessel in the process of pressurizing, find out the fountainhead in time.
为了监测管式夹套容器在加压过程中的内管泄漏情况，及时发现泄漏源。
The article presents a measurement method of intensity and position for LIA beams. By monitoring the image current on the inner pipe wall the beam intensity and position are obtained.
本文介绍了通过测量束流在输运管壁上形成的感应电流，来确定直线感应加速器束流大小、位置的一种方法。
The implanting device comprises canal head, inner pipe, close end controller, middle pipe, wire pipe, outer protection mechanism, at least one locking wire and at lest one bracket pulling wire.
输放装置包括导管头、内管、近端控制器、中管、导丝管、外保护机构、至少一根锁定丝和至少一根支架拉线。
The opening and the closing of the valve are controlled by the siphon action of the valve bodies and the siphon inner pipe, and therefore, the water level control of the water tank is realized.
通过阀体及虹吸内管的虹吸作用控制阀门的开启及关闭，从而实现水箱的水位控制。
The opening and the closing of the valve are controlled by the siphon action of the valve bodies and the siphon inner pipe, and therefore, the water level control of the water tank is realized.
通过阀体及虹吸内管的虹吸作用控制阀门的开启及关闭，从而实现水箱的水位控制。
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