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单式弯纱single sinking/ `7 {7 c$ p: Q# ?0 p+ E, W% G& {
复式弯纱sinking and dividing 有回退式弯纱sinking with robbing1 h8 g7 ^" I! m1 m- o* Z
无回退式弯纱sinking without robbing 夹持式弯纱sinking with clamping4 z7 ]% X% A+ ^
非夹持式弯纱sinking without clamping 1 e. Z! v( T9 L {7 q+ z2 M
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p3 y+ M+ [! a: h1 c
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