The moisture condensation can be identified by the visual evidence . 湿汽的凝聚能够靠视觉辩别。
2.
A liquid oxygen release in the atmosphere generates a deep cloud made of moisture condensation . do not expose yourself to the cloud 液态氧在空气中释放会与空气中的潮气作用产生浓雾。不要进入到浓雾中或屏气不呼吸。