2 SEC Because heat is no longer being transferred to the secondary loop, water pressure and water temperature in the primary loop rise. This is normal and no cause for concern.
2秒由于热量不能传到二次回路，主回路中的水压和水温上升，这很平常，不必担心。
4 min 30 SEC Operators observe that the water level in the primary system is rising and that the pressure is decreasing.
4分30秒操作员观察到主回路的水位在上升且压力在下降。
Objective To set up a method for the primary isolation and cultivation of rat sinusoidal endothelial cells (SEC), and study their biological characteristics.
目的建立大鼠肝窦内皮细胞(sec)的原代分离、培养方法，并研究其生物学特性。
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