Large area freezing, damage etc. failures occen occur on the air cooling condensers during start-up and shutdown of large size direct air cooling coal-fired generating units in winter.
大型直接空冷燃煤发电机组在冬季启停过程中，空冷凝汽器常常会发生大面积冻结、损坏等事故。
2
Stored in normal temperature, and in a cool, ventilated, dry place, avoid direct sunlight, freezing please seal placed in the refrigerator after opened.
常温保存，并置于阴凉通风干燥处，避免阳光直照，拆封后请密封放置于冰箱冷藏保存。
3
Moreover, seasonal freezing and melting and seasonal drying and wetting are the direct factors causing soil to expand and contract.