已经对冷却剂进行测试，没有燃烧气体的迹象。检查冷却系统时，也没发现气封和阻塞的情况。
The coolant has been examined for signs of combustion gases and checks have also been made of the cooling system for air locks or blockages.
这台冰箱已无法制冷了，所以我仔细检查了冷却系统，加了一些制冷剂。
The refrigerator could no longer refrigerate, so I checked the refrigeration unit and added some refrigerant.
检查所有压力表，溢流水管流量，显影缸加热系统，冷却系统。
Check all the pressure meters, the flow of the overflow tube, the heating system of the developing tank and the cooling system.
第二步，检查冷水系统和冷却系统的压差是否达到要求。
The second step, check the cooling water system and cooling system pressure is to meet the requirements.
第二步，检查冷水系统和冷却系统的压差是否达到要求。
The second step, check the cooling water system and cooling system pressure is to meet the requirements.
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