查询词典 hydraulics

According to the operating characteristic of the fluidics and the theory of hydromechanics, a dynamic model of the impactor is established, in order to bring the percussive rotary drilling technology into full play. Also a simulation program is developed to calculate the working properties of the impactor. By using the simulation program, the variation laws of the basic parameters of the hydraulic impactor under different structural parameters and hydraulics are obtained.

为充分发挥冲击旋转钻井技术的应用效果，在考虑射流元件工作特性的基础上，运用流体力学理论建立了液动冲击器工作动力学模型，并编制了计算液动冲击器性能参数的模拟程序，通过模拟计算程序得到了在不同液动冲击器结构参数和钻井水力参数下液动冲击器基本参数的变化规律。

Of course, no plant has the kind of muscles common to animals, but as with our Venus Flytrap, it manages its movement by hydraulics, using sap.

植物自然不具备动物那样的肌肉，但是火百合可以利用汁液按照水利学原理移动，这和金星上的捕蝇草很相似。

A combined Gauss main-element elimination method with compress-storage technique is proposed, which with the characteristic of less-storage requirement, small rounding off and high stability, and solved the problem of large storage requirements in solving large linear algebraic equations in river networks hydraulics

提出了压缩存贮形式的Gauss列主元消去法，该方法具有存贮量小、舍入误差小、数值计算稳定的特点，在一定程度上解决了河网水力计算问题中关于众多线性方程组的存贮及其求解过程中可能面临的困难。

This paper probes into the causes and frequency of the vibration of hydroelectric generating set of Lijiaxia Hydropower Station form three aspects of the mechanics, electromagnetism and hydraulics, and advances some suggestions on carrying out the prototype test.

从机械、电磁和水力等3个方面对李家峡水电站水轮发电机组的振动原因及其频率进行了初步探讨，并提出了进行原型试验的建议。

A novel photocatalytic reactor, which can use sun light and graniform photocatalyst, was developed and evaluated. Hydraulics studies show that the actual mean residence time was approximately 1. 5 to 2 times greater than the theoretical mean residence time, which is of great advantage for degrading the pollutants in the reactor, and that the high reaction rate can be obtained by increasing the rotational speed.

设计了一种新型提升式圆盘多相光催化反应器(exalting round-platephotocatalytic reactor，ERPPR)，该反应器的主要特点是能够利用太阳光和粒状催化剂，通过对ERPPR水力学特性的研究发现，该反应器的实际平均水力停留时间约为理论平均停留时间的1.5到2倍，反应器内循环流量与提升桨转速成正比。

The retractable hardtop is raised and lowered in about thirty seconds with the help of an electric motor and hydraulics.

伸缩硬顶提高和降低约三十秒的帮助下，一个电动马达和液压系统。

There were many notable innovations during the Tang, including the development of woodblock printing, the escapement mechanism in horology, the government compilations of materia medicas, improvements in cartography and the application of hydraulics to power air conditioning fans.

有许多显着的创新在唐代，包括发展雕版印刷术的擒纵机制计，政府汇编本草纲目medicas ，改进制图和液压系统中的应用电力空调的球迷。

She is not a little interested in hydraulics.

她对液压传动有浓厚的兴趣。

Genetic algorithms theory and method is first time being used to solve inverse problem of environmental hydraulics.

首次把遗传算法的理论和方法引入环境水力学反问题的求解中。

There are no hydraulics used and the machine is intrinsically quiet and safe to use.

不需要使用液压，试验台的使用非常安静和安全。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。