1.
flavanthrone paper
还原黄试纸,黄蒽酮试纸（用于试验还原浴中保险粉是否足够）
2.
Little paper can be used as an indicator of the presence of acid in a solution
石蕊试纸可用以测试溶液是否含酸
3.
Litmus paper can be used as an indicator of the presence of acid in a solution.
石蕊试纸可用以测试溶液是否含酸.
4.
sampling for testing papers
纸和纸板试样的采取
5.
testing method for surface strength of paper and paperboard
纸和纸板表面强度试验方法
6.
testing method for water repellency of paper and paperboard
纸和纸板水的排斥性试验方法
7.
testing method for fiber classification of pulp for paper
造纸用纸浆纤维分类试验方法
8.
method for determining coefficient of friction of paper and board
纸和纸板摩擦系数试验方法
9.
method of preparing hand sheets for pu0ptesting
纸浆试验用草纸制备方法
10.
testing method for ph of paper and paperboard
纸和纸板的ph值试验方法
11.
bursting strength tester for papers
纸类抗爆裂强度测试器
12.
testing method for sizing degree of paper (stoeckight method)
纸张尺寸试验方法（stoeckight法）
13.
testing method for bleach requirement of pulp
纸浆漂白性试验方法
14.
Test methods of mica papers
GB/T7195-1987云母纸试验方法
15.
Pulps-Sampling for testing
GB/T740-1989纸浆试样的采取
16.
schopper folding endurance tester
纸张耐折强度测试仪
17.
Ashcroft tester
纸张耐破裂度测试仪
18.
I'm trying to read this newspaper.
我正试着读这张报纸。