拿一个两升的空汽水瓶，洗干净，装满水，旋紧盖子，放进马桶的水箱里，离舌形阀越远越好。

Take an empty two-liter soda bottle, wash it out, fill it with water, screw the lid on tightly and set it into your toilet tank, as far away from the flapper valve as possible.

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升降式止回阀使用一个可承受弹簧载荷的轻量阀瓣，阀瓣的升程不高。

Lift check valve with a spring load can withstand light valve flap, flap valve lift is not high.

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新的2.0升柴油发动机推出。采用间接阀，这是全新发动机系列的开端。

The new 2.0-litre diesel engine is introduced. Featuring overhead valves, it is the start of a whole new engine family.

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