Tyre loose results in serious security accidents of locomotive digression, so it is significant to monitor the condition of tyre loose for safe driving on railway.
轮箍弛缓的发生将会引起机车脱轨甚至颠覆的重大安全事故，因此监测轮箍的弛缓状况对保障铁路行车安全具有重大意义。
Her baby teeth stay loose for a long time. They don't seem to fall out fast enough. When they finally fall out, it still takes a long time for the new teeth to grow in.
她的乳牙松动了很长时间，看来也不很快脱落，就是脱落了，新牙还要很久才长出来。
Her baby teeth stay loose for a long time. They don't seem to fall out fast enough. When they finally fall out, it still takes a long time for the new teeth to grow in.
她的乳牙松动了很长时间，看来也不很快脱落，就是脱落了，新牙还要很久才长出来。
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