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In this paper the technique of Thermo Time Domain Reflectometry is introduced to make measurements of a wide range of soil physical properties.We outline the theories of TDR technique for water content and electrical conductivity measurement, and heat pulse technique for determination of volumetric heat capacity, thermal conductivity, and thermal diffusivi...

本文以热脉冲技术和时域反射技术的理论为基础，介绍了利用热脉冲技术时域反射技术连续定位测定土壤含水量、电导率、温度和热特性的原理，并利用土壤热特性与容重和含水量的关系，导出了土壤容重、饱和度和通气孔度的计算公式。

Some sub-models of the original KIVA code were modified, by introducing into the Kelvin-Helmholtz and Rayleigh-Taylor model for spray breakup, the multiple laminar and turbulent characteristic timescale combustion model, the heat transfer model of Han and Reitz, the Hiroyasu and Nagle soot model and the improved Shell auto-ignition model were added to the original KIVA, to improve the predictions of engine spray, ignition, combustion, gas/wall heat transfer and emissions.

为提高模拟精度对标准的KIVA程序进行了改进，引入KH-RT雾化模型、层流和湍流多重特征时间尺度燃烧模型、Han和Reitz传热模型以及Hiroyasu和Nagle碳烟排放模型来模拟柴油机多次脉冲喷雾、燃烧、壁面传热及排放过程，同时增添改进的Shell自燃模型来模拟着火过程。

Therefore,the supplemental heat rejecter,such as cooling towers,can be utilized as assisted source to reject more heat to the air and effect...

采用辅助冷却复合地源热泵系统，可有效降低系统投资，提高系统的运行节能效果。

It appears that the relationships between the land surface heat fluxes and the heterogeneous length scale are significant, but the mesoscale heat fluxes don't indicate similar relationships with heterogeneous length scale. The representability of gridcell averaged surface fluxes is good but that of mesoscale fluxes is not so good.

这些结果表明地表水、热通量的空间分布尺度与非均匀尺度之间存在较好的对应关系，而中尺度水、热通量与非均匀尺度的关系并不明显，说明地表水、热通量的网格平均值的代表性较好，但是不能反映次网格脉动的影响，而中尺度通量的网格平均值的代表性较差。

In the paper, a back commutation mathematical model based on heat restrike is built according to the interrupting process. Solving differential equations for the mass, momentum and heat balance, the back commutation of low voltage current limiting circuit breaker is simulated.

根据实际开断物理过程，建立了以热击穿为主的背后击穿物理模型，运用气流场，结合热场、磁场与电流分布，计算模拟了低压限流断路器在开断过程中电弧运动状况与背后击穿现象。

In the heat and mass transfer process between liquid desiccant and air, the flow rate and heat inject/exhaust are both important factors to approach a reversible process.

吸湿性溶液与空气的热质交换过程既有热量的交换又有质量的交换，提高该过程的可逆程度是提高溶液除湿空调系统性能的重要手段。

All the varieties that excel in the hot Mediterranean summer heat, which is a very similiar heat of the Rhone Valley of France.

所有品种，在地中海的炎热酷暑，这是一个非常类似的热法国罗讷河谷。

This method affords a way to performing the calculation of multi-heat source ring-shaped heat-supply network hydrodynamic condit...

该方法为多热源环状热网的水力工况分析和非对称热网的计算提供了实现的手段。

"Thermal insulators, which break up the heat-flow path by absorbing radiant heat, include fiberglass, cork, and rock wool."

热绝缘体以对热辐射的阻隔性来阻断热量的流通路径，包括了玻璃纤维、软木和石绵。

"Thermal insulators, which break up the heat-flow path by absorb ing radiant heat, include fiberglass, cork, and rock wool."

热绝缘体以对热辐射的阻隔性来阻断热量的流通路径，包括了玻璃纤维、软木和石绵。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐