To indicate the borderline between hard and soft rock behavior, a simple, convenient and feasible method is presented with judgement by the stability of mudstone in water.

文章以泥岩的水稳定性做为划分标准对泥岩的岩土界线进行了划分，并设计了一些试验方法及提出了试验的基本准则。

youdao

It has good biodegradation, low of cloud point, strong ability of resisting hard water, good lather ability and stability, little thrill to the skin, good cooperate with other surfactants and so on.

它具有良好的生物降解性、浊点低、抗硬水能力强、起泡性好且稳定、对皮肤刺激性小、与其它表面活性剂的协同性好等特点。

youdao

The fatliquor has good stability in acid, alkali, salt and hard water, high content of active substance, and strong combining force with leather.

该加脂剂在酸、碱、盐、硬水中稳定性良好，活性物含量高，与皮革纤维结合能力强。

youdao