check and balance of powers  权力制衡原则

disequilibrium of balance of payment  国际收支不平衡

dynamic and balance of salt  盐分动态及平衡

gambling and balance of labor benefit  劳资利益的博弈与平衡

inflow and outflow of balance of payments  国际收支差额的变动

loss of balance of psychology  心理失衡

protection based on the principle of balance of energy  能量平衡保护

reduction of balance of cost method  降低成本余额法

compound powder of phosphorus and titanium  复合磷钛粉

cooperation of phosphorus and calcium  磷钙配合

Interference of phosphorus and fluorine  磷与氟元素的干扰

Process of Phosphorus and nitrogen removal  脱氮除磷工艺

removal of phosphorus and denitrification  除磷脱氮

Removal of phosphorus and nitrogen  脱氮除磷

superiority of yellow phosphorus and phosphorus chemical industry  黄磷及磷化工优势

the transfer of and changes in property rights of enterprises  产权划转和产权变动

Toxic effect of phosphorus and its compounds  磷及其化合物的毒性效应

Wastewater with high nitrogen and phosphorus and low carbon contents  低碳高氮磷污水

A Simple Dynamic Balance of Rotor Control  转子动平衡简单操作