base insulator造句

One usually constructs the folded-unipole from an existing monopole antenna by shorting out the base insulator, thus connecting the tower directly to the ground system.
Hydraulic jacks could lift the masts from their base insulators to avoid damage of the latter e . g . when sonic booms from military aircraft were expected.
In 1968 the tower was upgraded to serve the new 300 kW transmitter ( amongst others, the ceramic base insulator had to be replaced to withstand the higher voltages ).
In 1941, WGY changed frequency from 790 kHz to 810 kHz to comply with the North American Regional Broadcasting Agreement also known as NARBA . In 1942, during World War II, a concrete wall was built around the base of the tower to prevent saboteurs from shooting out the base insulator on the tower and taking the station off the air.
It's difficult to find base insulator in a sentence. 用base insulator造句挺难的