slowing
缓行, 减速( slow的现在分词 );
danci.911cha.com
1. 减速;慢化:慢(中子)分裂反应器 slow-fission reactor | 减速;慢化 slowing | 减能区面 slowing-down area
noun
1. a decrease in rate of change
e.g. the deceleration of the arms race
Synonym: decelerationretardation