Mechanical pulps are made to different freeness or drainage rates.
机械浆根据不同的游离度和滤水性生产。
The features are romantic freeness symbol, incomplete repletion and amusing cartoons.
这三个特征分别是：浪漫的自由符号、不完全的重复、趣味的卡通画。
Firstly, it is proposed to build Interference-Freeness Matrix for assembly in order to describe the relation of parts.
首先，提出建立装配体的干涉—自由矩阵，描述零件相互之间的空间关系。
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