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是这个纱布吗？1 b, I7 A$ i8 R' A# ]
4 _* e& p+ x+ W( x
41.1.28 Wherever cheesecloth is mentioned in connection with either a temperature test or an abnormal
& a6 F! }' s* Ktest, the cloth is to be bleached cheese-cloth, running 14 – 15 yd2/lb (approximately 28 – 30 m2/kg), and: J4 P4 d# X9 ^4 o
having what is known to the trade as a ²count of 32 ´ 28² – that is, for any inch square, 32 threads in one
: L* G, C" C8 ~- hdirection and 28 threads in the other direction (for any centimeter square 13 threads in one direction and5 m5 v2 T( k: s9 z5 C; l7 r
11 threads in the other direction).# d1 |. O, `) y( _/ p7 h* I
我们有40克的纱布，28×32。0 k, m& h! y/ n" x9 x$ I, V
http://www.eychi.com/product/cc40.html
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发表于 2011-7-25 19:39
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