流控制

The structures of cylindrical shell and spherical shell are basic components and widely used in industrial fields.

圆柱壳、球壳结构是工程领域中普遍应用的基本构件，研究该类壳体结构流固耦合辐射声场，对国防武器装备隐身技术的进步、工程结构的噪声控制及现代机电产品的低噪声优化设计等都具有重要的理论价值和现实意义。

"It does cause quite a few problems for the navigation industry when the river is this high because the current gets swifter, it gets wider and faster, and to maintain steerage, they have keep their speed up going downstream," he said.

这的确对航运业造成一些问题。当水位这么高的时候，水流变得又快又猛，顺流航行时必须加速才能控制住船。

The flow-through sedimentation tank may be a good choice to control the pollution of storm sewer systems.

存储-沉淀池是可行的选择，能有效控制旱流及雨天排江负荷。

The dimensionless equations are obtained by using stream function.

采用以流函数表示的无量纲基本方程，用控制容积法对方程离散化并进行了分析计算。

In present investigation, the Micro-computer Controlled Color-changeable High Speed Stroboscopic Photography System, jointly developed by us and the Optical Engineering Department of our university, was successfuly utilized to measure the particle motion in the furnace.

本论文首次较成功地将与浙大光仪系合作开发的微机控制的变色闪频高速摄影系统用于W炉内气固两相流中颗粒运动的测量，得到了颗粒运动的速度矢量及运行轨迹。

It is also further verified that surrounding rock, lining, as well as construction controlling techniques are the key factors in subsea tunneling.

研究结果表明，考虑流固耦合作用的数值模拟结果与现场监测、观测结果具有良好的一致性，进一步说明围岩、地下水以及相应的施工控制是海底隧道的三大核心技术要素。

Oxygen and carbon isotope of the carbonate sediments separately indicate lake waterδ~(18)O andδ~(13)C_,δ~(18)O indicates the volume of the input water which is a good index of Lake water level changes;δ~(13)C_ indicates the degree of the exchange between the lake and the atmosphere and indirectly indicates the ice cover time controlled by the temperature.3. Environmental changes in Lake Sugan drainage area during the past 2670 years reconstructed by mul-index synthesis analysis indicates that during

沉积物碳酸盐氧、碳同位素分别反应了湖水的δ~(18)O和δ~(13)C_，δ~(18)O指示湖水体积变化，是湖泊水位变化的良好指标；δ~(13)C_则指示了湖水和大气的交换程度以及入流水量的大小，间接指示了温度控制下的冰封时间长短。3、多指标综合分析重建的苏干湖流域晚全新世近2670年来的环境变化显示，苏干湖2670年来流域持续变干；出现截然不同的两个大的阶段，即

It has following characteristics: full bridge inverter, PWM control, power superimposition, and rapid over-current protection.

该电源采用全桥逆变拓扑电路、PWM控制方式、输出功率叠加的方案，具有快速的过流检测与保护功能。

Under some supposal conditions based on one-dimensional two-fluid model,"T"type pipe's dynamic model is established and used to simulate the distribution of two-phase mass flow.

在比较流体网络建模所用的"节点支路法"、"控制容积法"之后，独立提出了两相流管网建模的"构件建网"方法。

The symmetric algorithm is a traditional algorithm, it is easy and efficient, and so it is still being popular used. The stream cIPher and the block cIPher are two part of the symmetric algorithm. The symmetric algorithm uses the key to control the key stream generator, and then the generator produces a random stream. We can get the cIPher by xor the message and the random stream by bit. In the field of communication and code, the stream cIPher has always been the key cIPher of the military affairs and foreign affairs.

对称密码体制分为序列密码和分组密码两类，序列密码以密钥控制密钥流发生器，产生一随机序列，用这个随机序列和明文信息逐位异或，就得到密文，其加密单元为比特。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷