The concept of essential workoffracture offers a simple and practical way to measure the fracture toughness of a sheet.
介绍了用断裂基功的概念测定纸张断裂韧性的新方法。
2
An increase in crystal grain size of co-polypropylene probably resulted in a decrease in the specific nonessential workoffracture, which induced less ability in preventing fracture for long time.
共聚聚丙烯的晶粒尺寸较大可能造成其比基本断裂功减小，致使其耐长期破裂行为较差。
3
The article is a general review of the test and research work on fracture in relation to spiral welded pipes at home and abroad.