insulations造句怎么写

In spite of earlier hopes for plastic insulations, the combination of paper and oil still forms the most effective dielectric at the higher voltages.

For instance, you should make sure that the insulations between the soldering tweezers and welding cable are ok and the earthing point and each termipoint of soldering machine are in good condition.

Teflon, tefzel and silicone insulations are usable below 60 Celsius.

test methods for thermal transmission properties of thermal insulations

For instance, you should make sure that the insulations between the soldering turret and welding cable are fine, the chassis of the soldering machine is well grounded, and all wiring contacts are in good condition.