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单词 worm
释义 worm
[wǝrm]
DESIGN ENGINEERING
A shank having at least one complete tooth (thread) around the pitch surface; the driver of a worm gear.
INVERTEBRATE ZOOLOGY
1. The common name for members of the Annelida.
2. Any of various elongated, naked, soft-bodied animals resembling an earthworm.
METALLURGY
Sweat of molten metal which exudes through the crust of solidifying metal in a casting, and is caused by gas evolution.
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