thermocolor period

In this paper,several sufficient conditions are given for D being class 3 subset by the method of periodic coloring.

本文用周期着色得到了若干D是3类集的充分条件。

Based on hyperbolic heat conduction equation accounting for the phase lag between the heat flux and the temperature, the temperature responses of thin plate subjected to a periodic heat flux disturbance are investigated.

基于具有热流延迟相的双曲型热传导方程,研究了薄板在周期热流作用下的温度响应。

Hence the hot water cleanup cycle of oil wells could be extended effectively and the frequency of oil well cleanup could be reduced.

声波降粘防蜡配套技术,是利用机械声波装置振动波场的作用,使进入油管原油减缓蜡晶析出的速度,从而减少油井的热洗次数,有效延长油井的热洗周期。