指金气。即金运作用。《素问·气交变大论》：“收气不行，长气独明，雨水霜寒，上应辰星。”王冰注：“金气退避，火气独行，水气折之，故雨零冰雹及遍降霜寒而杀物也。”
无极调速调整张力。采用气涨轴收卷(或选用气动式收卷)，收卷松紧度可调。
Adopts air swelling shaft to furl roll (or to use pneumatic style to furl roll), the tension of furling roll can be adjusted.
无极调速调整张力。采用气涨轴收卷(或选用气动式收卷)，收卷松紧度可调。
Adopts air swelling shaft to furl roll (or select to use pneumatic style to furl roll), the tension of furling roll can be adjusted.
收卷：连续式气涨轴、电脑控制充气与打开。
Rewinding: continuous mode air expansion shaft, computer controls inflation and open.
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