当油位低于盘管时，盘管的表面将有结露的水混入液体中，造成液体变质，同时冷却能力也会下降。
Low oil level will result in an increase of condensation on the surface of cooling coil, the mixture of condensation and liquid will deteriorate the liquid and decrease the cooling capacity.
研究结果表明：（1）盘管泄漏初期，水泥层表面原始温度场迅速被破坏，而整个地板表面变化较弱；
Research results show:(1)the original temperature field of cement layer surface were quickly destroyed in initial coil pipe leakage, while the changes of floor surface were weaker;
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