难溶性磷肥 citrate-soluble phosphatic fertilizer: 枸溶性磷肥phosphatic fertilizer: 磷肥; 磷酸肥difficultly soluble nutrient: 难溶性养分thomas phosphatic fertilizer: 钢渣磷肥; 托马斯磷肥wet-process phosphatic fertilizer: 湿法磷肥下载手机词典可随时随地查词查翻译