By studying bacteria that flourish in the oxygen-freewater, scientists hope, among other things, to learn how simple life-forms can lead to more complex ones.
通过研究这些生活在无氧环境下细菌，科研人员希望了解这些简单的生物是如何进化成更为复杂的生物的。
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The sterilization method of separating plant endophyte includes the following steps: 1. washing the host sample with endophyte to be separated with bacteria-freewater in a bacteria-free work bench;
Laboratory studies show that Saluda Natural Spring Water contains several of the minerals necessary for good health and that it is completely free of bacteria.