vpd的音标

Tr was controlled by humidity, temperature and light intensity which affected Cond and VPD.

蒸腾速率主要是由温度、湿度、光强通过影响气孔导度和叶面水气压亏缺来调控的；

If Oracle database is chosen, 2 ways of database-level security are supported: FGA ( Fine Grained Access) and VPD ( Virtual Private Database).

如果采用的是Oracle公司的数据库产品，则可以有两个可供选择的产品，用以控制数据库级的存取安全：FGA（Fine Grained Access）技术和VPD（Virtual Private Database）技术。

The influence of net radiation and VPD on leaf temperature of cucumber grown in greenhouse was studied.

针对温室的小气候条件，以生长期的黄瓜作为测试对象，分析了太阳净辐射（Rv）和水汽饱和差（VPD）对叶片温度的影响。