Witherite deposits belong to stratabound deposits of hot water sedimentation.

毒重石矿床属热水沉积成因层控矿床。

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The hydrothermal sedimentary rocks are closely related to gold mineralization in space, which indicates that the Baguamiao gold deposit belongs to the hot water sedimentation (transformation) type.

热水沉积岩与金矿化空间关系密切，说明八卦庙金矿属于热水沉积（改造）型金矿床。

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Sun clocks worked, of course, only on clear days; water clocks misbehaved when the temperature fell toward freezing, to say nothing of long-run drift as the result of sedimentation and clogging.

当然，太阳时钟只能在晴天工作；当温度下降到接近冰点时，水钟就会失灵，长期漂浮的东西因为下沉或堵塞而无法工作。

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These factors include high water temperatures, pollution, sedimentation, high light levels, reduced water levels and changes in salinity.

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