The hot spots and their volcanic trails are milestones that mark the passage of the plates.
热点和它们的火山痕迹是标志板块移动的里程碑。
But despite the passage of time and the accumulation of supporting data, teaching evolutionary theory in the classroom is still a hot-button issue in some U.S. schools.
纵使时间推移，数据累积，在美国的一些学校，进化论能否进入课堂仍是一个热点问题。
The passage of time, slowly settling the share of hot and Enron.
时光的流逝、慢慢沉淀的是那份炙热与安然。
The passage of time, slowly settling the share of hot and Enron .
时光的流逝、慢慢沉淀的是那份炙热与安然。
Hot air circle device can evenly send hot air to everywhere of sealed space by inside passage, to control the internal temperature and gradient in sealed space.
热空气循环系统将热空气通过内部风道均匀送到封闭空间的每个地方，严格控制封闭空间内的温度及温度梯度。
Try to make the cold, hot water flow passage of convection heat transfer coefficient is equal or close to, to get the best heat transfer effect.
尽量使冷、热水流道内的对流换热系数相等或接近，从而得到最佳的传热效果。
Try to make the cold, hot water flow passage of convection heat transfer coefficient is equal or close to, to get the best heat transfer effect.
尽量使冷、热水流道内的对流换热系数相等或接近，从而得到最佳的传热效果。
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