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词汇	spur gear
释义	spur gearn.（名词）Clarinda/Academy Artworks A gear with teeth radially arrayed on the rim parallel to its axis.正齿轮：牙状齿按辐射形安置在与轴平行的边缘上的齿轮
随便看	firebird fire blight fireboard fireboat firebomb firebox firebrand firebrat firebreak firebrick fire brigade firebug fire clay fire control firecracker fired firedamp fire department firedog fire door firedragon firedrake fire drill fire-eater fire engine

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