※ 引述《ArgoNautyoyo (笨蛋)》之铭言： : heptatriaconta 和 alkenone : 这2个是什麽意思呢 : 本身是外行人手边又没化学专用字典 : 请帮帮忙 >"< : 谢谢 第一个你可以参考这个网址 http://0rz.net/e71HC 他的意思是 "37" 也就是有37个的意思，是一种计数的方式 常用的大概就是1-20 你不问 我大概也不知道 囧 至於alkenone 用维基百科查的结果如下： 就内文来看，好像是长碳链的酮类 或者是 具有双键、长碳链的酮类 Alkenones are highly resistant organic compounds (ketones) produced by phytoplankton(浮游植物) of the class Prymnesiophyceae. Specifically, coccolithophoroid Emiliania huxleyi(?好像是细菌或霉菌？) respond to changes in water temperature by altering the production of long-chain unsaturated alkenones in the structure of their cell. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ It has been established experimentally that the temperature of the ambient water in which the organisms form their cell can be estimated from measuring the ratio of their unsaturated alkenones (C37-C39) that are preserved in marine sediments. The Unsaturation Index of “di” versus “tri” unsaturated C37 alkenone is calculated according to the following relationship: UK′37=[C37:2]/[C37:2+ C37:3] The Unsaturation Index can then be used to estimate the water temperature according to the following experimental relationship: T (οC) = (UK′37 - 0.039) / 0.034 ------------------------------------------------------ 看到C37之後 就知道你为什麽要问heptatriaconta了 这个好像化学辞典也找不到 ORZ 希望有帮到你 XD --

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