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- 梣直脊天牛Eutetrapha sedecimpunctata
- 直销direct marketing; door-to-door sale
- 直发straight hair
- 直的straight
- 直飞non-stop flight to
- 脑脊液ncurolymph
- 竖直upend
- 青杨脊虎天牛Xylotrechus rusticus
- 直击uppercut
- 山背上突起一个石脊。A spur of rock stuck out from the mountain.
- 直前right ahead
- 直行rectigrade
- 脊管, 椎管spinal canal
- 纳曼甘脊虎天牛寄生菌的初步研究Preliminary Study on Parasite Microorganise of Xylotrechus namanganensis Hey del
- 直送direct sending
- 直管ascending pipe
- 中国脊花天牛属一新种(鞘翅目:天牛科)One New Species of the Genus Stenocorus (Coleoptera: Cerambycidae: Lepturinae) from China
- 船到桥头自然直Cross the bridge when you come to it
- 直冲fling
- 中国脊筒天牛属分类研究(鞘翅目:天牛科)TAXONOMY ON THE GENUS NUPSERHA THOMSON FROM CHINA(COLEOPTERA: CERAMBYCIDAE)
