查询词典 secondary

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

Air entering the engine is divided into a primary and a secondary airstream.

两个转子是彼此独立的机械结进入发动机的空气被分成主两个气流。

In this thesis, the first stage secondary air network system of a gas turbine is studied.

本文以某型燃气轮机透平第一级叶片的二次空气系统为研究对象。

During 1953 the War Office collaborated with the Air Ministry and the Ministry of Supply in the formulation of a specification for a simple and relatively inexpensive small helicopter for use by the Army for reconnaissance and other secondary duties such as casualty evacuation and training.

在1953年，陆军部合作与空军部和供应部在一个简单而相对便宜的由侦察和其他次要责任陆军使用，如伤员后送直升机和培训小规格的制定。

In this paper, the control strategies of variable flow in secondary pump system and primary pump system in air conditioning were also discussed.

本文还探讨了空调二次泵系统和一次泵系统变流量的控制策略。

On the airscape, the area occupied by secondary clarifier is almost as large as biochemical reaction tank.

此外，二沉池的运行还受到浮泥等问题的影响，这些问题都在一定程度上阻碍了活性污泥法工艺的进一步发展。

As a common secondary mineral, feldspar minerals, especially albite, have shared a close relationship with jadeite minerals.

长石矿物特别是钠长石作为翡翠的常见次要矿物，与硬玉矿物之间存在着密切的关系。

The canals originated in the alburnum during the very year in the form of cavities by the malformation, disfunction and solubilization of the youngest cells of secondary xylem.

我国枫香资源相当丰富，大量分布于华东、中南及西南各省，目前国内正在进行对此资源作深入开发应用的研究工作［1］。

While calculating tensor Green's functions, the algorithm of secondary division is adopted to solve the singular problem. The Gaussian quadrature and continued fraction is adopted to calculate the integral with Bessel function. This method not only can ensure the right calculation of tensor Green's functions but also can get high precision.

求取张量格林函数积分时，采用二次剖分算法解决计算中奇异值问题，对于含有贝塞尔函数的积分项，利用结合连分式展开的高斯求积代替常规的快速汉克尔变换方法，确保了张量格林函数的正确计算并提高了计算精度。

The change of the primary and secondary structure of the rice protein treated by alkali was studied.

研究了碱处理对大米谷蛋白一级和二级结构的影响。

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％。