V-T If something necessitates an event, action, or situation, it makes it necessary. 使成为必需 [正式]
A prolonged drought had necessitated the introduction of water rationing.
一场持续的干旱使定量供水的引进成为必需。
In places, the water table is declining at a rate of a meter a year, necessitating the periodic deepening of wells and the use of ever-more-powerful pumps.
在一些地方，水位正以每年一米的速度下降，需要定期加深井并使用更强大的水泵。
The conversion-per-pass is generally low, thus necessitating gas recycle to increase overall product yield.
其单程转化率一般是低的，因此有必要使气体循环以提高总的产品收率。
It described a simple session EJB method that updates both JDBC and JMS data, necessitating an XA transaction.
它描述了通过一个可以更新jdbc和JMS数据的简单会话ejb来实现xa事务。
应用推荐