Hydraulic parting, which can form a symmetrical and vertical planeoffracture in the formation that surrounds a well is an effective measure of increasing production.
水力压裂是一种有效的增产技术，它能使油井周围地层形成一个对称的垂直裂缝面。
2
In the evaluation of highway steel truss Bridges based on the method offracture mechanics, the plane fracture toughness K IC must be detected firstly.
应用断裂力学方法对公路钢桁桥的安全性能进行评估中，必须首先测出平面应变断裂韧度K IC。
3
Any further increase or decrease in planeof the X-ray beam could not identify the fracture.