英语词汇“pilot tunnel”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	pilot tunnel
释义	pilot tunnel 基本例句导洞 In many projects, like the Simplon, for example, a smallpilot tunnelis driven before the full diameter of the tunnel is excavated.在许多隧道工程中，经如辛普龙大隧道，都要在隧道全面开挖前打一个导洞。
随便看	bony scale bony scaleor teleost scale Bony sclerosis bony scute bony semicircular canal bony semicircular canals bony septum of eustachian canal bony septum of nose bony shell bony skull bony slim bony sphenoethmoidal recess bony sphenoidal sinus bony spicule bony spinal lamina bony spiral lamina bony spur bony structure bony superior meatus of nose bony superior nasal meatus bony suture Bonytail bonytail chub bonytails bony tarsus