...L 和RR 型不平衡所作的转换称为 单旋转(single rotation),而把矫正LR 和RL 型不平衡所作的转换称为双旋转(double rotation)。 对LR 型不平衡的转换可以看作RR 旋转后的LL 旋转,而对RL 型不平衡的转换可以看作LL 旋 转后的RR 旋转(练习1 5)。
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WT35-11型为屋顶轴流式通风机,该风机为中低压大流量风机,可设计成送风、排风或双旋转可逆式。
WT35-11 comes as an axial-flow roof fan that features low and medium levels of pressure and heavy wind flow and can be geared to the needs of blowing, exhaust and double-rotation reversible mode.
Freebord六轮滑板具备了滑雪单板所能提供的全部乐趣(包括刻滑、漂移、旋转等姿势),同时又为您免去了滑雪会遇到的麻烦事(比如:上坡道时大排长龙、无数双板滑雪者干扰行进路线以及昂贵的费用等)。
This six-wheeler offers all the fun of snowboarding (carving, drifting, spinning) without the negatives (lift lines, skiers, wasting half your paycheck).
双轴旋转使衣物洗得更干净,而且圆鼓可以帮助用户确保衣物一次性洗完,而不是浪费能量的分批清洗。
The dual axis rotation makes for super-clean clothes, and using the drum as a laundry basket helps users make sure that they are washing full loads rather than energy-wasting partial loads.
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