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zhl3868金虫 (小有名气)
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[求助]
请帮忙修改下这段话，谢谢了！
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请高手帮忙修改下这段话，谢谢了！ For 16 EPA-PAHs concentration in surface water of the Hun River, a distinct seasonal pattern was observed that the average concentration of 16 EPA-PAHs in surface water was 286.75 ng l-1 in dry-period, 3066.79 ng l-1 in flood-period, and 4346.71 ng l-1, in level-period, respectively. In particular, the concentrations of 16 EPA-PAHs in level-period were about twenty times of those in dry-period. However, the ∑PAH16 concentration relations between upstream and downstream sites of the Hun River was relatively complex, with no obvious trend being observed in three periods, but the PAHs concentration in water sampling from outflow site of Dahuofang reservoir in three periods was low. |
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爱与雨下: 金币+1 2012-03-20 10:44:17
爱与雨下: 金币+1 2012-03-20 10:44:17
| For 16 EPA-PAHs concentration in surface water of the Hun River, a distinct seasonal pattern was observed that the average concentrations of 16 EPA-PAHs in surface water were 286.75 ng l-1 in dry-period, 3066.79 ng l-1 in flood-period, and 4346.71 ng l-1, in level-period, respectively. In particular, the concentration of 16 EPA-PAHs in level-period was about twenty times of that in dry-period. However, the relation of ∑PAH16 concentrations between upstream and downstream sites of the Hun River was relatively complex, with no obvious trend being observed in the three periods, but the PAHs concentration in the water sampled from outflow site of Dahuofang reservoir in the three periods was low. |
2楼2012-03-20 09:43:50