Normally the oil surrounding the probes is nonconductive and the control will be de-energized.

通常情况下，环绕探头的油是不导电的，此时控制装置处于断电状态。

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The test probe is also applied through openings in earthed metal enclosures having a nonconductive coating such as enamel or lacquer.

试验探棒还需穿过在表面覆盖一层非导电涂层如瓷釉或清漆的接地金属外壳的开口。

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A pneumatic tire where at least an outer peripheral portion of the tread (3) is constructed from an electrically nonconductive rubber layer (12).

一种充气轮胎，其中至少胎面部(3)的轮胎外周侧部分由非导电胶层(12)构成。

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To the end of the string is tied a metal key, and to the key is attached a silk (nonconductive) cord, which the experimenter holds.

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