Any of various moths of the family Geometridae, having caterpillars commonly known as measuring worms that move by looping the body in alternate contractions and expansions.

尺蠖蛾任何尺蠖蛾科的蛾，通常称为尺蠖，通过身体交替的收缩和伸展来伸屈前进。

youdao

The formulae given here for measuring the parameters of nine kinds of gears, worms and worm wheels have been proved in practice to be applicable.

文中所提出的九种齿轮和蜗轮蜗杆的参数测定公式，经过实测验证是完全适用的。

youdao

The experiments were inconclusive, however, because of the problem of measuring the temperature of such tiny worms.

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