Now the commonly used seal groove is a logarithm spiral groove.

现在的密封槽型比较常用的是对数螺线槽。

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Shaft seal: mechanical seal, according to user requirements can be used seal packing.

轴封：采用机械密封，根据用户要求也可以采用填料密封。

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This product is a nutrimental food, used Seal Oil as its principal ingredient and prepared by scientific processing technics in advance.

本品是以海豹油为主要原料，经过先进的科学加工工艺精制而成的营养食品。

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Another suggestion is to bury the wreck in a concrete sarcophagus - the method used to seal the Chernobyl nuclear power station.

BBC: Analysis: Salvaging the Prestige

Jude's device, called the Amplatzer PFO Occluder, is used to seal a flap-like passageway between the left and right atriums of the heart.

WSJ: Doctors Debate Whether Strokes Be Prevented With a Heart-Plug Procedure

Cement used to seal the well was provided by Halliburton.

BBC: BP: Gulf of Mexico oil spill 'shared responsibility'