求翻译：　　小窍门：因为个别缸工作不好，气门关闭不严，上高速跑跑是一个办法，也可在3挡或4挡上高转速多跑一会儿，效果一样。如果热车不抖动但换挡不顺，则有可能是喷油嘴喷油量不匀，需要检测、清洗。是什么意思？

Tips: individual cylinder valve closed lax, high-speed Running is a way, but also on the block 3 or 4 block high-speed run for a while, the effect is the same. Hot car does not jitter but the shift will not ring true, it is possible that the injector fuel injection quantity is uneven, the need for t

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　　Tip: because of the bad work of individual cylinder, valve closing is not strict, is an approach to high speed running on, or 3 or 4 retaining retaining high speed runs for a while, the effect is like. If hot do not dither, but shift did not shun, nozzle injection quantity is likely to be uneven,