利用本标准测定色度时，检测下限为4黑曾单位。

When using this standard to measure calm chroma, detect floor level is 4 black Ceng Chan.

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“生物似乎利用一切可能的化学途径来获取能量并生成碳碳键，”黑曾说。

"Life seems to exploit every possible chemical pathway to obtain energy and make carbon-carbon bonds," says Hazen.

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例如，一个新发现的称为黑曾石的矿物，是以黑曾的名字命名的，它仅仅由于一种生活在加利福尼亚州莫诺湖酸性水域的微生物产生的磷酸盐而形成。

For example, a newly discovered mineral called hazenite, named for Hazen, forms only because of phosphate produced by a microorganism that lives in the acidic waters of Mono Lake in California.

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