在自然条件下气温是呈周期性变化的，许多生物适应温度的某种节律性变化，并通过遗传成为其生物学特性。这一现象称为温周期现象（thertnoperiodism）。
在全暗条件下，温周期本身通过低温持续期、温周期反应阈值、温周期幅度决定昆虫的滞育发生。
Under condition of continuous darkness, cryophase duration, thermoperiodic response threshold and thermoperiodic amplitude play important roles in the determination of diapause in insects.
由于在国内尚无法得到长周期逐时温度参数，关于温频法气象参数的研究和应用相对缺乏。
Since the long term temperature records are not available in China, there is a lack of BIN weather data for study and application.
在水动力计算过程中考虑了洋流和季风等长周期动力因素，研究了温排水在这种长周期动力条件下的扩散规律。
In the process of hydrodynamic calculation, ocean current and monsoon have been added to the model, and the diffusion law of cooling water under the condition has been studied.
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