At the end of the shift or work day, close the cylinder valve and bleed the pressure off the regulator and torch equipment.

在下班或工作日结束的时候，关闭钢瓶阀门，放出调整器和吹管设备内的压力。

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He ordered the piston taken off the lathe and fitted to the cylinder.

他让把活塞从车床上卸下来装到汽缸上去。

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When the valve of protection for the loss of gas is turned off, you must select a single role of the reaction cylinder.

当阀门的保护方式为失气关闭时，必须选择单作用的反作用气缸。

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The game is played with 49 glass or ceramic marbles grouped together on a 2m-diameter concrete cylinder raised 7cm off the ground and covered in sand.

BBC: Knuckle down at England��s World Marble Championships

When they hit the electric field at the end of the cylinder, they bounce off it, spiral back towards the entrance, where they run into matter, and annihilate.

ECONOMIST: Antimatter