' }0 e* A0 l) L P3 B/ o单式弯纱single sinking
: k1 ^- M/ |( V# n2 D+ \复式弯纱sinking and dividing 有回退式弯纱sinking with robbing* {6 q; m1 E: j. ~$ `$ B9 h. k
无回退式弯纱sinking without robbing 夹持式弯纱sinking with clamping
0 W3 ]2 ^9 s/ I' y# s非夹持式弯纱sinking without clamping
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