During transportation and storage , protection box casing lower on the cavity is filled with oil .
在运输和储存时，套管的下部放在内腔充满油的保护盒中。
Therefore , the casing must be assembled , the tank flange and install process in oil .
为此，套管必须装配好，并安装在充油的油箱工艺法兰上。
During the experiment , dry transformer oil casing cavity filled with breakdown voltage is not less than 35kv .
试验时，套管的内腔应充满击穿电压不低于35kv的干燥变压器油。
It might be trippy to sit inside the semi transparent glass casing and roll down the highway .
当坐在半圆形透明的玻璃盒中，在公路上滚动你可能觉得那是幻觉。
Its latest device , the ngp ( next generation portable ) , is also packed with new technology , such as a touch screen and touch-sensitive back casing .
