vt.解开；释放

Don't unloosen the rope, or you will fall down. 不要松开绳子,否则你会摔下来的。

I know that unloosen it being harder than hold it. 这些日子以来，每当我有一点感触的时候都是因为你。

Due to the related policy supports, the credit loan environment in Chinese papermaking enterprises began to unloosen. 由于相关政策扶持，对中国造纸企业贷款限制开始放松。

With the reform of system of medical treatment and sanitation, the more unloosen of the medical treatment market, the competition of medical treatment institution has been started. 随着医疗卫生体制改革,医疗市场的进一步放开,医疗机构之间的竞争已经拉开了序幕。

The stepper locking mechanism enables testing sealing set to unloosen and to withstand higher bi-directional pressure difference; 该封隔器可实现步进机构锁紧 ,坐封后不松动、不退位 ,能够承受较高的双向压差 ;