对流

In passive solar heating room with greenhouse and heat storage, thermal insulation of solar heating room has significant effects on temperature distribution and airflow in the heating chamber of this solar system. Solar irradiation absorber, heat storage and insulation are the main effect factors of the passive solar heating room Heat transfer and gas flow in rock bed worked as solar absorber and storage layer have also been studied, including transport properties.

被动式太阳能温室-采暖房，分析采暖房北墙采用或不采用隔热保温措施时，温室-采暖房内的温度和气流分布情况，模拟具有蓄热层的太阳能温室-采暖房中的对流传热，表明集热、蓄热、隔热是太阳能温室蓄热型采暖房的三个重要方面。

There are 3 ways of heat transfer:conduction, radiation and convection.

传热的方法有三种：传导、辐射、对流。

There are three ways of heat transfer:conduction,radiation and convection.

传热的方法有三种：传导、辐射、对流。

It is important to notice that heat exchange is done radially, and not by convection from the beginning to the end of the chamber.

重要的是要看到，热交换是放射状，从一开始就不是由对流会议厅结束了。

In the paper, a numerical model is proposed for natural pulsating flow and heat transfer.

本文发展了一种模拟自激脉动流动及对流传热过程的数值方法。

The dissertation analyses the agency of the rate of radiation convection in heat transfer as well.

分析了辐射—对流比这一物理量的含义，并据此物理量此判定是否要进行辐射量的计算。

Supported by the National Natural Science Foundation of China(Study on Heat Transfer Characteristics of Downhole Coaxial Heat Exchanger in Convection Geothermal Reservoir )and Tianjin Development and Plan Program of Science and technology(Study of Ecologic Architectural Energy System), the thermal performance exploiting earth energy for heating and cooling is studied in this paper,and its main purpose is to offer reference for increasing the percent of renewable energy in Ecologic Architectural Energy.

本文在国家自然科学基金（井下换热器周围对流型地温地层内的传热特征研究）和天津市科技发展计划项目的资助下，重点研究了地表热能高效利用中的传热与热力性能问题，为可再生能源在生态能源建筑中发挥更大的作用提供依据。

The pressure field and the velocity field in a cyclone separator were measured with five-hole probe and hot-wire anemometer respectively.

用五孔探针和热线风速仪测定了蜗壳式旋风分离器内的速度场和压力场，分析了上部入口结构、芯管插入深度和锥体长度对流场的影响。

Since the convective cloud system is tilted, and the viewing angle is oblique, the area displacement between ice hydrometeor and the surface rainfall rate makes the relation between Tb and surface rainfall rate is relatively small.

但亮温和地面降水强度之间的相关性较弱，这是由于该对流系统为倾斜的，冰相粒子和地面降水强度之间存在着位置上的不一致，并且观测角为倾斜的。

In this paper, two types of transport models widely used for water and salinity in soils are introduced; one is physical models, which include convection-dispersion Equation, stream tube model and HYDRUS developed by US Salinity Laboratory. At the same time, the parameter research is related to physical models. Another is system models, such as Transfer Function Model and BP-Network model. The resemblances and the differences among these modeling are compared and analyzed.

介绍了国内外目前应用较为广泛的几种水盐运移模型，包括对流－弥散模型、流管模型和美国国家盐渍土改良中心开发的HYDRUS模型等3种物理模型以及相关的模型参数研究；两种系统模型：传递函数模型和BP人工神经网络模型。

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％。