常见例句The paper studies the content change of nitrite in them after spraying different formulation of hyponitrate preparations over potted greens and lettuce. 以盆栽试验方式研究了青菜和生菜在喷施不同配方的低硝酸盐制剂后蔬菜体内硝酸盐含量的变化。 返回 hyponitrate