The results showed that GCL2 was a good corrosion inhibitor to carbon steel in neutral water medium.

结果表明，改性木素磺酸盐缓蚀剂GCL2在中性水介质中，对碳钢的缓蚀性能优异。

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Although ha first for Opportunity, this is not the first time that neutral water has been found on Mars.

虽然这是“机遇”号第一次在火星上发现水，但这却不是水第一次在火星上发现。

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Clay minerals in a rock called Esperance clearly indicate that neutral water flowed across the rock some time in the first billion years of its existence.

一块名为“狮石”（Esperance）的岩石里，其中的粘土矿物表明在这块岩石最初的10亿年中的某个时刻时在，曾有中性水从它上面流过。 。

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The rock that Curiosity found, on the other hand, has calcium sulfate and seems to have been in water with a neutral pH.

CNN: NASA: Yes, Mars could have hosted life