应用因次分析法推导出表征巷（隧）道火灾烟流滚退距离变化规律的通用无因次表达式，该表达式包含影响滚退距离的火源热释放速率、通风风速、巷道倾角和形状等因素。
A non-dimensional expression, which shows the general variation of the backflow distance of smoke and hot gases during a roadway or tunnel fire, was derived through dimensional analysis.
长时间运行的流程无法像微流那样回滚，不过，它们可以使用补偿处理程序撤消先前执行的活动。
Long-running processes can't be rolled back like micro-flows, however they can have compensation handlers to undo previously performed activities.
中介流是作为事务提交或回滚的。
Mediation flows are committed as a transaction, or rolled back.
这些流都是事务型的，使用的是两阶段提交之类的机制，这样在失败时可以回滚整个流，或者在成功时提交整个流。
These flows are transactional, using mechanisms such as two-phase commit, so that the entire flow can be rolled back in the case of a failure, or committed in the case of success.
也许在战场上铺满香蕉皮，国防军就会滑的滚瓜尿流。
Maybe by littering the battlefield with peels so the Wehrmacht would slip hilariously on them.
主要利用大气中的压、湿、湿、风的垂直分布，判断大气滚流对天气演变的影响来预报天气转折性变化。
The vertical profiles of pressure, temperature, humidity and wind are used to determine the influence of atmospheric roll flow on weather and to predict the turning of weather.
采用流场数值模拟计算方法，计算了横风作用时的垂向气动升力系数、气动横向力系数和侧滚力矩系数，得出各系数与车辆速度和风速之间的变化关系。
Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.
推荐可变压缩比（VCR）方案、可变废气再循环率（EGR）方案、可变排气门关闭时刻方案，以及废气再循环滚流分层充气方案等。
Schemes of variable compression ratio (VCR), variable exhaust gas recirculation (EGR), variable exhaust valve timing, and EGR with stratification by tumble charge flow are recommended.
随着发动机转速升高，单侧进气EGR在缸内气体作用下形成滚流分层越明显。
The tumbling flows stratify of the side jet EGR is more obviously as the speed of the engine increases.
据此建立了缸内滚流比预测模型，并在稳流试验和拖动工况下缸内流动的LDA测量试验中得到验证。
A model for predicting the tumble speed is derived and verified by the steady flow rig and the in-cylinder flow measurement results by a LDA system.
我公司具有一流的滚针轴承生产设备和优秀的企业经营。
Our needle bearing design and making are at the domestic advanced level and of good reputation.
除具有纯滚流特点的S1阀片位置外，缸内气体斜轴涡流运动强度与单边气道截面被遮住的面积成正比。
Lastly, the strength of inclined-axis swirl is directly proportional to the Shadowed area of the single channel except for the S1 valve position where the in-cylinder motion is only tumble.
发现四气门汽油机各缸产生的最大滚流轴线与曲轴轴线夹角是不同的。
The results show that the Angle between maxi - mum tumble axis and crank axis generated by each cylinder in a four-valve gasoline engine varies.
用热线风速仪研究了缸内滚流的形成过程，发现滚流轴线与水平面的夹角随气门升程的增大而增大。
It is found that the Angle between tumble axis and horizontal plane increases with valve lift. The "tumble" is not a pure tumble, but is a inclined swirl.
水平方向的涡流、轴线方向的滚流以及湍动能的这种分布特性都有利于燃油的雾化以及与空气的混合。
Horizontal swirl, axial tumble and the distribution of turbulent kinetic energy are very important for fuel atomization and mixture formation.
结果表明，该直喷汽油机具有较强的滚流性能，有利于分层混合气的形成和稀薄燃烧。
The results show that a rather strong tumble motion exists in this GDI engine, which is beneficial to the formation of stratified mixture and lean combustion.
首先，研究了直喷汽油机滚流稀薄燃烧系统的组成、结构及其控制。
Firstly, this paper studies the components, structure and control of the tumble-stratification lean combustion system on GDI engine.
通过稳流气道试验和CFD瞬态数值模拟研究了4g15型直喷汽油机的进气滚流特性。
The intake flow tumble characteristics of 4g15 GDI engine are analyzed by using both flow rig and CFD transient numerical simulation.
莱茵河不断以每小时六、七哩的速度，滔滔滚流，波涛起伏。
The Rhine flowed on, swirling and eddying, at six or seven miles an hour.
莱茵河不断以每小时六、七哩的速度，滔滔滚流，波涛起伏。
The Rhine flowed on, swirling and eddying, at six or seven miles an hour.
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