词汇	compound pregnancy
释义	compound pregnancy 复妊娠
随便看	boring and milling machine boring and milling maching center boring and milling production boring and mortising machine boring and position boring and riveting machine boring and srilling machine boring and trepanning association boring and turning machine boring and turning mill boring-and-underreaming method boring animal boring animal borer boring apparatus Boring Attack boring axis boring bar boring-bar boring bar bearing boring-bar bearing Boring Bar Design boring bar for adjustable cutter boring bar head boring barrod boring bar support