In the recent year, more and more physical problems on the noncommutative background are regarded as important for people with the study of the quantum HullEffect and the string theory.
近几年，随着对量子霍尔效应和弦理论的研究，越来越多的非对易背景上的物理学问题引起人们的重视。
2
It was only when the hull was hanging freely from the lifting frame, clear of the seabed and the suction effect of the surrounding mud, that the salvage operation progressed to the second stage.
只有当船体从升降架上自由悬挂，脱离海床和周围泥浆的吸力作用时，打捞工作才进入第二阶段。
3
Inlarger boats the weight of a person has less effect on the hull trim, but it can be adjusted by shifting gear, fuel, water, or supplies.