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是这个纱布吗?3 a# b( S# E/ P
/ L+ Q# ?% h) N+ C3 y! y/ J41.1.28 Wherever cheesecloth is mentioned in connection with either a temperature test or an abnormal. I" ?# J7 y6 Q- R$ c3 S
test, the cloth is to be bleached cheese-cloth, running 14 – 15 yd2/lb (approximately 28 – 30 m2/kg), and) n/ u4 y. H% m& j8 L$ w
having what is known to the trade as a ²count of 32 ´ 28² – that is, for any inch square, 32 threads in one- Z& _: L X' \1 z
direction and 28 threads in the other direction (for any centimeter square 13 threads in one direction and
! l( F* X5 @& N$ I# F9 P11 threads in the other direction).
* l! _1 E9 M: m0 y% [我们有40克的纱布,28×32。" r! b; M8 H( f6 v
http://www.eychi.com/product/cc40.html$ q: w: U& E# I$ _& w$ i2 L
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