Make sure check the bolt and nut before testing run. and if they become less crowded, fastening again.

试车前务必检查所有螺栓、螺母是否有松动，若有松动的螺栓、螺母必须重新紧固。

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Check the bolt and nut and filling press cover, it it become flexible during the transport or store, screw down it.

内腔进行去湿处理并检查各连接部位的螺栓、螺母和填料压盖等是否在运输和存放过程中产生松动，如发现应均匀拧紧。

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Therefore, we should regularly inspect the bolt and nut fastening and implemented in order to reduce unnecessary costs.

因此，应定期对螺栓和螺母进行检查并实施紧固，以减少不必要的费用。

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Those who had worked on Apollo - who intimately knew every nut and bolt - were left gasping at what they'd accomplished.

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"He was one of these people who had ideas and he had this sudden idea that it would be educationally rather good to put together a geometric system whereby you could nut and bolt things together, " he said.

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