Soy Silk is valued for its quality, shine, and softness.
在质量、光泽及柔软性方面，大豆丝绸都很有价值。
Another quality of line that's more difficult to achieve is variation in the softness and hardness.
线的另一性质更加难以企及，那便是软硬的变化。
The softness of knitting silk yarn should be indicated by quantitative indexes so as to well control the quality of knitted fabrics.
在针织用丝的柔软程度表示中，企业需要的是定量的指标，以便于控制针织坯布的质量。
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