Mean low water (MLW) is the average height of all low waters at given place.

平均低水位(MLW)为给定地区所有低潮位的平均值。

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Prior to the late 1990s, this type of phytoplankton showed up only sporadically during summer blooms, usually in conjunction with the upwelling of low-oxygen waters.

在之前的20世纪90年代，这个种类的浮游植物只在夏季水华中偶然现身，大多与低氧水体上涌现象同时发生。

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The waters swamped low-lying suburbs, tore ferries from their moorings and cars from their parking bays, and turned Brisbane’s business district into a ghost town.

洪水淹没了低洼的郊区，没过了停泊着的渡轮和停车场的汽车，把布里斯班的商业区变成了一座无人的城镇。

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After being stuck in murky low-tide waters for most of the day, the Common Dolphin passed away Friday evening, according to Joanne Biegert of the Riverhead Foundation.

CNN: Rescuers: Dolphin stranded in polluted New York canal dies

Oysters grown in pristine northern waters, say Maine or Washington, have extremely low incidence of bacteria.

FORBES: A Giant Shucking Sound

The Navy disputes his assessment, saying this year's humpback whale season was normal, and more whales than ever before were seen in March 1998, when biologists studied humpbacks' response to the Navy's Low-Frequency Active Sonar (LFAS) equipment in Hawaiian waters.

CNN: waves