本品（炎痛息康）为白色至类白色结晶固体，难溶于水、稀酸及大多数有机溶剂中。
It occurs as a white to off-white, crystalline solid, poorly soluble in water, dilute acid and most organic solvents.
金属离子和无机酸的阴离子生成一种难溶的盐。
The metal ion and the anion of the mineral acid form an insoluble salt.
锌焙砂含有少量难溶的铁酸锌，通过还原焙烧可以降低铁酸锌含量。
Zinc calcine contains a small amount of refractory zinc ferrite that can be reduced by reduction roasting.
金属离子和无机酸的阴离子生成一种难溶的盐。
The metal ion and the an ion of the mineral acid form an insoluble salt.
有机酸通过影响土壤中无机磷组分，促进难溶性磷酸盐溶解，从而提高土壤磷的有效性。
Organic acids can improve soil phosphorus availability by affecting the inorganic phosphorus fraction and mobilizing soil sparingly soluble phosphate.
本文提出了测定水难溶单元酸的两种线性滴定方法。
Two linear methods for evaluating slightly soluble acids are presented.
本品为白色至类白色节晶固体，难溶于水、稀酸及大多数有机溶剂中。
It occurs as a white to off-white crystalline solid poorly soluble in water dilute acid and most organic solvents.
说明：淡黄色粉末，不溶于水，难溶于无机酸。
Description: Pale yellow powder, insoluble in water and difficult to soluble in mineral acids.
酚酸废水是典型的难降解有毒有机化工废水之一。
Phenolic acid wastewater was a typical organic chemical industrial wastewater which was poor degradable and toxic.
药物释放结果表明，此凝胶对难溶药物乙酰水杨酸具有增溶缓释作用。
The experimental results showed that the hydrogel was a promising material for causing solubilization and developing a long-term controlled release system.
酶能转化复杂的，难降解的芳烃和直链烃类化合物，并不是轻易地将它们生物降解为为简单的脂肪酸，而是加速生物清除的过程。
A. Enzymes transform complex, recalcitrant aromatic and aliphatic hydrocarbons that are not easily biodegradable to simple fatty acids, thereby accelerating biological cleanup.
简述了云龙难选氧化银铜矿的性质，论证了酸浸—硫化沉淀浮选工艺的可能性及工业试验结果。
The properties of Yun Long refractory silver-copper ore are summarized. The feasibility as well as the pilot test result of the acid leaching-sulfide precipitation flotation process is demonstrated.
简述了云龙难选氧化银铜矿的性质，论证了酸浸—硫化沉淀浮选工艺的可能性及工业试验结果。
The properties of Yun Long refractory silver-copper ore are summarized. The feasibility as well as the pilot test result of the acid leaching-sulfide precipitation flotation process is demonstrated.
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