A large proportion of the fluorine is vaporized during the concentration process.在浓缩过程中大部份氟蒸出.health effects of fluorine pollution氟污染对健康的影响If the fluorine content is high, it may increase plant corrosion.如果氟的含量高, 会加剧设备的腐...
A large proportion of the fluorine is vaporized during the concentration process.在浓缩过程中大部份氟蒸出.The fluorine does not accumulate indefinitely in the water.氟不会在水里无限制地积累.If the fluorine content is high, it may increase plant...
The amplitude of the vibration determines the loudness of the sound.振动幅度的大小决定声音的大小.There is so much vibration on a ship that one cannot write.船上的震动大得使人无法书写.The vibration of the window woke me up.窗子的震动把我惊醒了....