| 吸人空气 | aspiration of air (The injection of argon directly into the shroud is an attempt to stop the aspiration of air by increasing the internal pressure in the shroud. Generally, this is partially successful if sufficient argon is used. 直接将氩气吹入长水口是一种通过提高长水口内压避免空气吸人的尝试。一般说来，如果氩气充足，这种尝试可取得一定的成功。) |
