This is made from a part which is machined up on the lathe and tapped for screwing into the valve-plate, and a short section of steel tubing.

这是由一个是加工上的车床和到阀板拧挖掘的一部分，以及钢管短节。

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The section of traditional portal rigid frame are constant cross-section and wedge shape variable cross-section, this paper brings up a component cross-section—ripple web plate variable cross-section.

传统的门式刚架的构件截面为等截面和楔形变截面，本论文提出了一种构件截面形式——波纹腹板变截面。

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Although they are sometimes produced by landslides on the seafloor, significant tsunamis are typically created by subduction earthquakes, when one massive oceanic plate suddenly lurches deeper beneath another plate, shoving up a huge section of the seafloor.

MSN: Why this Indonesia quake didn't spark a monster tsunami