loosening

n.松散；放松

动词loosen的现在分词形式.

The entry of the bacteria is apparently facilitated by the loosening of the cell walls. 细胞壁松散易使细菌侵入。

Transnationalism is a social movement grown out of the heightened interconnectivity between people all around the world and the loosening of boundaries between countries. 跨国主义是一种社会性的运动，产生于全世界范围内的人之间高涨的互联性，以及国家之间的边界的松散化趋势。

I regulate the tempo by tightening and loosening. 节奏调控收紧和放松有高有低。