At the same time, our leaching experiments indicated that weathering in studying region is actually naturalleaching process.
酸淋溶试验同时也反映出研究区的风化作用实质上是一种天然的酸淋溶作用。
2
The process of producing molybdenum disulfide with natural method has been improved. In the new process, stepwise leaching is substituted for mixed acids leaching.
对天然法生产二硫化钼的工艺进行了研究，提出了以分段浸出代替混合浸出的方案，并进行了实践。
3
Made from pure, non-leaching food grade stainless steel, the Safe Starter is the next natural step in the evolution of the baby bottle.