Some designs are more linear without allowing a forward and backward flow of information.
有些设计不允许向前和向后的信息流而更为线性的。
The effect of controls parameters on mass transfer enhancement under pulsatile flow with backward flow condition is investigated.
最有效的质量传递强化发生在净流动进入过渡流流域之前的中等雷诺数下；
Using cement retainer squeezing technology can prevent the cement backward flow, and CAM let the residual cement through the upper party to recycle to the ground.
采用水泥承转器挤水泥技术能防止挤水泥浆倒流，且多余的水泥浆能从工具的上部反循环至地面。
The flow of Poyang Lake is divided into three kinds of flow as following: gravity flow, top-lifted flow, and backward flow, their characters are described in the article.
根据实测资料，将鄱阳湖湖流归纳为重力型、顶托型、倒灌型三种基本类型，概述了各类型湖流的机制、特征；
In case of a backward jump, the navigation continues at the target activity, and, as a result, some activities may be executed again, that is depending on the control flow.
对于向后跳转，导航将在目标活动继续执行，结果可能会再次执行某些活动，这具体取决于控制流。
So, in a nutshell, Spring Web Flow makes developing Web applications with directed navigation (typically forward and backward) a lot easier and less error-prone.
所以，概括而言，在使用定向导航（通常为向前和向后）开发Web应用程序时，使用Spring WebFlow可以使这项工作变得更容易，错误的机率更少。
Instead, business users usually draw backward connections that direct a flow back to an activity further upstream as it is shown in the lower half of the figure.
业务用户通常绘制逆向连接来将流引回上游活动，如此图的下半部分所示。
Backward-facing step flow is not only a typical example of complex separated flow of fluid dynamics, but also a class of common flow phenomena in many engineering fields.
后台阶流动不仅是流体力学中复杂分离流的一个典型例子，同时也是许多工程领域中一类常见的流动现象。
Backward, flow backward, o tide of the years!
噢，岁月的潮汐，后退，向后退！ ！
Backward step flow is numerically studied using ICM. Results show that ICM is a promising method.
结果表明，积分单元法是计算后台阶绕流的一种较好的方法。
Use CFD software, the area of flow channel for forward skewed and backward skewed impeller was analyzed, and the differences in the performance of pressure between them was got.
利用CFD软件分别对前向和后向叶轮旋涡风机的单个叶道进行流场分析，得到前向和后向叶轮单个叶道的压力性能差异。
To make easy and efficient production planning for mixed-mode process and improve performance of the planning, a parallel backward inferring algorithm based on flow networks was proposed.
针对混合流程作业计划编制困难、效率低、生成的计划可执行性差等问题，提出了基于生产流程网络图的时间并行倒推算法。
KANBAN is a particular method of production and material flow based on a backward linking principle of operations in production.
KANBAN是一种基于生产内部关系的特殊的产品生产与物料流程。
It is indicated that the flow field over a backward facing step possesses simultaneously the characteristic of non-steady flow and steady flow.
后向台阶流的流场同时具有非定常性和定常性的特性。
In this paper, the evolution of eddy structures in the backward-facing step flow was studied by using large eddy simulation.
本文对后台阶分离流动中涡结构的演变进行了大涡模拟，研究了流场结构的变化规律。
The re-circulation and reattachment process in backward-facing step flow is investigated using large eddy simulation (LES).
应用自主开发的大涡模拟程序数值模拟研究了后台阶流动中再附着过程的演变。
We give a discretization method for the viscous terms of the two-dimensional shallow water equations , and the obtained discretized equations are used to solve the backward-facing step flow problem.
对二维浅水方程粘性项给出了一个离散方案，并将其应用于求解后台阶流动问题。
A reversible axial flow fan is required to run with high aerodynamic performance both in forward direction and in backward direction.
可逆风机在正向与反向送风时，都希望具有良好的气动性能。
Valve regurgitation is a condition in which valves don't close tightly, allowing blood to flow backward across the valve. Symptoms include shortness of breath, fatigue and heart palpitations.
瓣膜回流是由于瓣膜关闭不全，致使血液通过瓣膜回流，症状包括呼吸短促、疲劳和心悸。
Generally, the forward loading return vane could achieve higher total pressure recovery coefficient and much more uniform discharge flow than the backward loading return vane.
负荷分布形式对回流器流动结构和性能影响较大，前加载的负荷分布形式能够得到更好的性能。
Moreover, the reason why a good flow field exists in the impeller with backward swept blades is also explained.
并对后掠叶片叶轮流场好的原因作了分析。
Owing to some backward objective conditions such as experimental facilities and laboratory space, flow excursion experiment has not been activated temporarily.
由于实验设备和实验场地等客观条件的滞后，流量漂移实验暂时未能启动。
The averaged gas velocity of flowing backward between the exhausting duct and the mixture tube increases with the rise of the main nozzle flux and the downwash flow velocity.
实验发现外套出口和混合管之间夹层存在气流倒流现象，倒流平均速度随着主喷管流量和下洗气流速度增加而增加。
In this article, a method of simulation for the gas-solid two-phase flow field in backward-blade centrifugal fan with high efficiency, which is style 4-72, has be developed.
风机。本文对具有较高效率、后弯式的4—72式锅炉引风机进行了气固两相流的数值模拟。
It is termed backward because of the opposite direction of the flow of the metal to that of ram movement. Thus, the billet in the container remains stationary and hence no friction.
这个过程被称作反向挤压就是因为金属的流动方向与推杆的移动方向相反。
It has three leaflets that function like a one-way door, allowing blood to flow forward into the aorta, but not backward into the left ventricle.
它有三个瓣叶，功能象一个单向们，允许前向血流进入主动脉，但不能返流回左心室。
As the refrigerant does not flow backward before it flows into a compression space, it is possible to improve the compression efficiency.
由于在制冷剂流入压缩空间前制冷剂不会回流，所以能够提高压缩效率。
Metal flow is a very inhomogeneous process during backward extrusion of complex box body, Relative shape and size of the blank is a key factor which affect metal flow.
复杂盒形零件的反挤压是一个极其不均匀的流动过程 ，坯料的相对形状及尺寸是影响金属流动的关键因素。
The characteristics of the flow over a backward facing step are studied by use of a 3 D viscous flow mathematical model.
利用三维粘性流动数学模型，研究了台阶突扩流动的三维特性。
The characteristics of the flow over a backward facing step are studied by use of a 3 D viscous flow mathematical model.
利用三维粘性流动数学模型，研究了台阶突扩流动的三维特性。
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