It was designed specifically to work in cramped Spaces and includes four different weights.
它特别适于在狭小空间使用，包括了4种不同线型。
Where, more specifically, do weights come from?
更详细地讲，权重是哪里来的？
Machine screws or nuts and bolts used to attach balance weights are specifically prohibited.
特别禁止采用机械螺丝，螺母和螺栓来固定平衡重装置。
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