词汇	hexagonal drill
释义	hexagonal drill 六角钻机
随便看	primary oral cavity primary oral groove primary oral teaching primary or basic primary ordered semigroup primary ordered sernigroups primary order longitudinal aberration primary ore primary ore deposit primary ore mineral primary ore zone primary organ primary organic material primary organism Primary Organization primary organization of the cpc primary organization of the party primary organizations primary organizer primary orgnaizer primary org unit indicato primary orientation primary orientation flat primary orifice primary original evidence