Longitudinal crack of drill pipe box joint is brittle fracture at low stress.
钻杆接头的各种纵向开裂属于低应力脆性断裂。
Cancers include those of the eye, mouth, voice box and food pipe.
癌症部位包括眼睛，口腔，咽喉和食道。
This pipe removes the slurry, which is above the level into the seal box.
当水位高于密封箱时，管道就把浆液排出。
But the pipe has one major detractor: It's something of a black box.
但是，管道有个大缺点：它像是黑箱子。
For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
为慎重起见，拟采用管幕保护下的顶进法施工。
For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
为慎重起见，拟采用管幕保护下的顶进法施工。
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