清中 meaning in Chinese

kiyonaka

Determination of ph of butter plasm
奶油乳清中ph值的测定
Trace perchlorobenzene in chlorothalonil determined by high efficiency liquid phase chromatography
高效液相色谱法测定百菌清中微量六氯苯
In my opinion : 1 . four paws . 2 . many paws . this is why i think it ' s in mid qing dynasty
我看着是： 1 .四爪； 2 .多爪。这也是我看2 .年份晚于清中的原因，也太不把皇权看在眼里了。
Contrary immigration of sichuan in the middle and late qing dynasty and its influence on the development of the outlying nationality areas
清中后期四川人口逆向迁移及对边远民族地区开发的影响

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