acidity of pit entry的用法和样例：
- The effects of technical operations such as grains mixing before pit entry, husk mixing, steaming, water proportioning and cooling etc. on the acidity of distilled grains were investigated.
- Investigation on the Technical Conditions Influencing Pit Entry Acidity of Distilled Grains
- The fangs of pit vipers are long, hollow tubes.
- It's a bleak look-out for the coal industry as the number of pit closures increases.