- trial thickness
- 试用: on trial; try out; on probat ...
- 厚度: thickness; land
- 使用厚度: application thickness
- 试用: on trial; try out; on probation 试用人员 person on probation; probationers; 通过试用期 pass one's probation (period); 试用二年 two years on probation; 这个新办法正在试用。 this new method is on trial.; 试用本 edition put to solicit comments; trial edition; 试用教员 probationary teacher; 试用品 trial products; 试用期 prebationary period; probation period
- 绘图用厚纸: artist's illustration board
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