If a stable column of mud has been set up in the well, keeping the oil at bay through its sheer weight, the next step would be to set cement in the well and seal it off permanently.
如果一个稳定的泥浆柱能在油井里成型，并通过它十足的压力将石油限制在海湾范围，那下一步就是将井里的泥浆粘合好，使油井永久封闭。
"We now have a high volume process for manufacturing sodium fill valves," said Schaefer. "We drill the holes, fill them with sodium and seal them all in one step."
“我们现在拥有了一种高集成的中空充钠气门生产工艺，”Schaefer说，“钻孔填钠密封，一步就可以搞定。”
In patch clamp experiment, the formation of giga-ohm seal is a critical step, which is usually fulfilled through controlling the air pressure within pipette and the holder.
在膜片钳实验中，吉欧封接的形成是至关重要的步骤，一般通过控制电极与电极夹持器内腔气体压力来完成。
With the rapid step of office automation, manual seal identification has become the bottleneck.
随着计算机应用的普及，传统的手工印鉴识别成为办公自动化普及的瓶颈。
Seal performance is stable: Merging functions of step-less speed regulation and photoelectric trace into a single whole, operation is convenient.
封口性能稳定：集无级调速、光电跟踪等功能于一体，操作方便。
Main performance: Seal performance is stable. Merging functions of step-less speed regulation and photoelectric trace into a single whole, operation is convenient.
产品说明：主要性能：封口性能稳定，集无级调速，光电跟踪等功能于一体，操作方便。
Main performance: Seal performance is stable. Merging functions of step-less speed regulation and photoelectric trace into a single whole, operation is convenient.
产品说明：主要性能：封口性能稳定，集无级调速，光电跟踪等功能于一体，操作方便。
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