ph值变化造句

A solution which resists ph changes is known as a buffer solution
The previous literature on factors determining soil quality changes mainly focused on the natural processes of soil quality change , while socio - economic and policy factors tend to be neglected
Tone along with ph value change , when acidity assumes red , when neutrality assumes red to the reddish purple color , when the alkalinity assumes the reddish purple color , when the acidity to the thermally stable , is also stable to the light
Tem reveals that the complex possessed good dispersibility in the system and the status varied reversibility with the ph value and the size of the complex is within 20 ~ 40nm . the complex was characterized by ft - ir , uv - vis , fluoresence and electrical conductivity methods . paa - ag nanospheres were also synthesized by coordination of polyacrylic acid and silver ( i ) ion and queued in line in lr
The synthesis of poly ( - hydroxybutyrate - co - - hydroxyvalerate ) by the strain g - iiiy from different precusor was studied . it was found that the strain g - iiiy could accumulate phbv with sucrose as carbon source and propionic acid or valeric acid as precursor . in 2l self - controlled fermentor , the dry cell weight , phbv concentration and phbv content reached 35 . 8g ? l - 1 , 22 . 6g ? l - 1 and 38 . 4 % respectively in the case of fermentation for 42 hours and the propionic acid as precursor
用ph值变化造句挺难的，這是一个万能造句的方法