Vehicles used to transport perishable food products should be well insulated to retard the flow of heat through their walls.
用于运送易腐食品的车辆一般都要有很好的隔热效果，从而减缓通过车身进行热传导。
Their general characteristics are of obvious progressive metamorphism, with the heat flow from mantle as the essential factor and a collision orogenic belt to be the tectonic setting.
其共同特征是：具明显的递增变质现象，以地幔热流上升为主要因素，构造背景为碰撞造山。
The paper presents a digital simulation analysis result of flow and heat transfer of a compound structure nozzle of hybrid motor, and also presents their comparison with experiments.
本文对某固液混合发动机复合结构喷管进行了流动与传热数值模拟，并与试验结果进行了对比分析。
Their excellent properties of heat transfer and scale resistance were suitable to the heat exchange requirements of high viscous flow.
其良好的传热及抗结垢性能适合于高粘度流体的换热要求。
But now the domestic heat exchange ventilators, most of which are forms of cross-flow, and their heat recovery effectiveness can hardly be improved.
但是如今国内生产的全热交换器，大部分都是叉流形式的，热回收效率难以得到提高。
But now the domestic heat exchange ventilators, most of which are forms of cross-flow, and their heat recovery effectiveness can hardly be improved.
但是如今国内生产的全热交换器，大部分都是叉流形式的，热回收效率难以得到提高。
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