4 I3 [8 C( }: B
喷丝板调换周期spinneret change period 3 e7 P- V7 J A) W9 n! s2 N/ h
/ r/ H% Z, M$ S/ T! n8 y' x. M4 N
# T% H/ a8 I" F3 O: P
( n' g0 o1 v( X' t 3 t( i1 W) q+ i
喷丝板使用周期spinneret change period
' A) V' n3 r8 c8 a, H% o4 B' \+ S K* R6 b* s6 A6 y( u
4 @# f4 y3 ?& W( P( d5 x) _' B/ x8 m, M( p
2 Q2 Y3 w* K5 r+ J4 m5 }0 Q: b, N
换板周期限spinneret change period
4 B \0 h$ E* Z# m. h$ K5 T9 ]9 U5 W- T9 P9 t# ]& Q
/ Z& _. U4 `7 x4 _+ e, K4 q7 A( }
# B, i8 K$ M, Y: S5 I H |