内热

Numerical simulation is used to analyze three-dimensional flow and heat transfer processes.

采用三维流动与换热的数值计算方法对换热器内传热过程的影响因素和机理进行了模拟研究。

The results indicate that the larger the concentration of chitosan in the capsules is the slower the release rate of capsule. The biocompatibility tests of the three heparin microcapcules/PLA composite materials show that all materials are negative and have no obvious toxicity. There is no potential hypersusceptibility substance in materials, and the content of pyrogen is conforming to the requirement of organisms.

三种微囊与PLA的复合材料经皮肤刺激试验、皮内刺激试验、热原试验、全身急性毒性试验和细胞培养试验，结果表明，所制备的复合材料在生物学评价试验中均呈阴性反应，材料无明显毒性，材料中不存在潜在致敏性物质，所含热原含量符合生物体的要求。

By means of the method of average heat capacity and state equation for ideal gas, the limiting temperature and imiting pressure in an oxygen bomb were calculated in the process of determination of combustion heat for benzoic acid.

利用平均热容法和理想气体状态方程，预测了苯甲酸燃烧热测定过程中氧弹内的极限温度和极限压力。

It has been found that the finned tubes with blocked inner tube are advantageous to enhancing heat transfer.

内翅片管是强化换热的一种十分有效的方式，它在紧凑式换热器中得到广泛应用。

A new type of three-dimensional inner microfin tube is used in the present paper.

摘要本文首次报道了新型三维内微肋两相闭式热虹吸管的换热性能。

Based on the three dimensional viscoelastic integral constitutive relation of a propellant grain with the finite element method, the analysis about the thermo-viscoelasticity of solid propulsive agent column is presented.

基于药柱的三维线性热粘弹性积分本构关系，采用有限元法，对固体火箭推进剂药柱进行热粘弹性有限元分析，得出药柱在轴向过载作用下的变形结果和药柱内危险部位的位置，表明药柱具有明显的粘弹性特点。

Our country firstly put forward such design principle of Qinghai-Tibet railway engineering as "lower temperature actively, reduce the heat into the subsoil, and assure the heat stability of frozen earth for the quality stability of construction", creatively adopt such corresponding measures of frozen earth construction problem as: for the poor frozen earth developing section, line should avoid as possible;for the geology of ice at high temperature and unstable frozen earth zone, the method of bridge instead of subgrade shall be adopted;in subgradeconstruction, such facilities as heat stick, rubble ventilation subgrade , rubble ventilation berm, ventilation pipe subgrade and laying heat preservation board etc shall be adopted to raise the stability of frozen earth subgrade;during the excavation of bridge, culvert , foundation pit and scouring prevention trough, creatively adopt single-tooth knapper and solve the problem of frozen earth excavation;during the construction of bridge and culvert, durable concrete and three-step maintenance method are adopted to assure the outside and inside beauty of structure.

我国在世界上首次提出"主动降温、减少传入地基土的热量、保证多年冻土的热稳定性，从而保证修筑在上面的工程质量的稳定性"的青藏铁路工程设计原则，创造性地采取了解决冻土施工难题的相应对策：对于不良冻土现象发育地段、线路尽量绕避；对于高温极不稳定冻土区的高含冰量地质，采取"以桥代路"的办法；在路基施工中采用了热棒、片石通风路基、片石通风护道、通风管路基、铺设保温板等多项设施，提高冻土路基的稳定性；在桥涵基坑、挡水埝基槽开挖中，创造性地应用了单齿破碎器，解决了冻土开挖难题；在桥涵工程施工中，采用了耐久性混凝土，采用了三步养生法，保证了结构物内实外美。

In spite of the limited air sounding data, we would use the adiabatic lapse rate method and the time interpolation to get the hourly mixing height. It should be noticed that the degree of accuracy was not so good enough that we can completely believe it. As a result, the follow research worker should notice this over estimation by the method.

因此尽管在有限的例行气象探空观测下，采用乾绝热递减法配合时间权重内插计算是现有条件下的一权宜方法，但是须注意的是，此方法的准确性并不如我们所预期，混合层比对的相关性也不甚理想，因此建议后续研究，如有继续采用乾绝热递减法来决定混合层高度之时，应多加留意探空资料对混合层所产生的高估影响。

The boundary conditions and the latent heat of heat transfer system have been treated by heat-enthalpy method.

在这样的充填条件下，虽然金属压铸模的导热性很高，蓄热能力很强，但要求在压铸模型腔内获得形状完整、轮廓清晰、尺寸精度高的铸件，必须得选用合理的模具结构和压铸工艺，而压铸模具的尺寸精度和使用寿命在很大程度上取决于其在压铸过程中热应力和其产生的变形。

The effects of hydrothermal process parameters on the prepared ITO crystal were investigated, such as hydrothermal temperature, hydrothermal time, mineralizer and medium.

探索了水热反应条件：反应温度、反应时间、矿化剂和反应介质对制备ITO晶体的影响，在实验的上限温度(00℃)内不能用水热法直接制备出ITO晶体。

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％。