Addition of organic metal compaounds的用法和样例：
- Addition of organic matters to recirculating water can improve the effect of ozone on descaling.
- All of these soil organic fractions reached the highest value at seven day after addition of organic manures.
- Additions of organic matter to soil hasten calcium losses.
- The effects of bubble size, approaching velocity, diffusion of organic component and addition of electrolyte and surfactant on bubble coalescence were investigated.