The effects for acid hydrolysis of gelatin from the various factors including weightconcentration of gelatin, reaction temperature and amount of added acid, etc. are studied by the viscosity method.
用粘度法研究了明胶浓度、反应温度和柠檬酸用量等因素对明胶酸水解反应初速率的影响；
2
The tibia weight and its zinc concentration were affected by dietary zinc levels.
鸡只的胫骨重量及胫骨锌浓度，受饲粮的锌含量影响。
3
Objective to explore the effect of different concentration aminophylline on feeding intolerance in low birth weight infants (LBWI).