闸板

In a normal pipe ram, the two blocks of steel that meet in the center of the wellbore to seal the well have a hole (one-half of the hole on each piece) through which the pipe fits.

在标准的管闸板中，在井眼中间相会，以密封井的两块钢板有一个可以通过钻杆的中孔。

As the valve body and valve cover gasket, you can not remove the valve flap or damper circumstances, forced open a gap, into the raw material brought on the list.

作为阀门中阀体与阀盖间的垫圈，可在不取出阀瓣或闸板的情况下，撬开一缝隙，塞进生料带去就行了。

Please identify the direction of switch of disc.

运行时请辨清扇形闸板开关方向。

In special situations, a third BOP type-the rotating BOP–can also be used in combhtation with rams and annulars.

在特殊情况下，第三种防喷器-旋转防喷器也可以与闸板防喷器、环形防喷器组合使用。

The movement of slide plate is like that of hay cutter, which can cut off the material lagging on the dust-ladle and make the valve in sealed state.

闸板的运动像刀铡一样能切断滞留在灰斗上的物料，达到密封状态。

The interference fit between the gate and seat provides bubble tight shutoff even under the lowest pressure.

即使在最低的管线压力下，闸板与阀座之间的配合也能够实现气泡级密封功能。

The interference fit between the gate and seats provides bubble tight shutoff, even under the lowest pressure.

即使在最低压力条件下，闸板和阀座之间的交互界面也能够实现气密性关闭。

This provides vertical movement of the gate without extension of the stem above the valve body.

因此闸板的垂直移动不会导致阀杆在阀体上方的延伸。

Straight trip valve through a linear motion components such as the gate to allow or cut off the logistics.

直行程阀通过一个直线运动的部件如闸板来允许或切断物流。

Seal type of valve disc is automatic coupling, which can bear different pressure. Effective reaction can strengthen the seal state.

闸板采用自动耦合密封形式承受不同的压力，有效的反作用使其增强密封状态。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。