英语词汇null instrument怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	null instrument
释义	null instrumentn. (also 亦作 null indicator) an instrument used to measure an electrical quantity by adjusting known quantities in the circuit until a reading of zero is obtained 零点调整仪；平衡点测定仪
随便看	tortious tortiously tortoise tortoise-like tortoiseshell tortoiseshell butterfly tortoiseshell cat tortrix tortuosity tortuous tortuously tortuousness torturable torture torturer torturous torturously torula torus Tory Toryism tosa to satiety to say nothing of to say the least (or the least of it)

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