principle of conservation of mass meaning in English

质量守恒定理

Topics include the principles of conservation of mass , momentum and energy ; hydrostatic behavior of floating and submerged bodies ; lift and drag forces ; dimensional anaylsis ; wave forces on ships and offshore platforms ; laminar and turbulent flows
主题涵盖质量守恒、动量守恒及能量守恒等原理、浮体及沈体之流体静力行为、升力、拖曳力、因次分析、船舶及离岸平台上作用的波力、层流及紊流。
This paper analyzes the groundwater discharging course using fluidics theory and combining quay structure construction ; sets up the method of fast drainage by the dint of pipeline and blind ditch of fragment stone ; and gives the computational mathematical model for quay drainage and calculation formula for drainage process according to the principle of conservation of mass and underground percolation , which have been applied for quay ' s stability design and calculation
应用流体力学理论结合码头结构建设，分析了地下水排泄过程，借助管道和碎块石盲沟建立了港口码头快速排水与挡墙基床排水的方法；运用质量守恒定律和地下水渗流原理，建立了港口码头排水计算数学模型和排水过程计算公式，并用在了码头的稳定设计计算中。