The optimization of Initial Temperature Difference (ITD) is the relatively key part in the process of the design of the direct air cooling power station.

初始换热温差ITD值的优化是直接空冷电站设计过程中较为关键的部分，关系到整个电站设计是否经济、合理。

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The initial thickness and in the specified time, the prescribed temperature compressed specimen, specimen thickness difference after the prescribed final recovery time.

指试样的初始厚度与在规定时间、规定温度下压缩后，经过规定恢复时间的试样最终厚度差异。

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The initial phase difference of the fiber interferometer is calculated by measuring the interference photocurrent and the photocurrents from the two fiber arms based on a temperature control plat.

利用恒温控制平台，通过测量干涉光电流和干涉仪两臂光电流的方法，实现了对全光纤干涉仪两臂初相位差的测量。

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They get their initial power and instability from the difference in temperature between the very hot Sahara air and the substantially cooler air along the coast of the Gulf of Guinea.

BBC: NEWS | Africa | Experts seek clues to hurricane births