Its outer casing is made of silicone and is fitted with pressure sensors so that it knows what it is touching.

它的外壳由硅材料制成并安装了压力传感器，以便识别碰触到的物体。

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Squeeze cementing USES pressure to force the cement through holes or perforations in the casing.

挤水泥时在压力下将水泥浆压经套管中的射孔孔眼。

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The laws of casing stress changes caused by inner casing pressure changes are calculated by simulation.

模拟计算了套管内压变化引起套管应力变化的规律。

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The denser mud had been, up until this time, the primary pressure control and was keeping the hydrocarbons in place despite the lack of an adequate cement job at the casing shoe.

WSJ: The Oil Disaster Is About Human, Not System, Failure