preliminary acceptance trial是什么意思

用法例句

Elementary discussion on the reception and preventive tests of XLPE cables;

浅谈交联聚乙烯电力电缆的交接、预防性试验

The detection experience of hand-over and preventive test for transformer is introduced.

通过对电力变压器交接和预防性试验项目的检测,如变压器油中溶解气体分析、直流电阻和绝缘电阻测量、介质损耗因数测量、绕阻变形、局部放电等试验,介绍了电力变压器交接和预防性试验的检测经验。