“已发送传真”文件夹的低水位线值必须小于高水位线值。
The Sent Items folder low watermark value must be smaller than the high watermark value.
丹江口水库坝前水位为135.17米，仍比139米死水位线低近4米，给库区人民生产生活带来极大的不便。
The water level of Danjiangkou Reservoir is 135.17 meters now, nearly 4 meters lower than the dead water level of 139 meters , caused great inconvenience to the life of people near the reservoir.
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