This type of water comes from underground sources and has low levels of oxygen, yet high amounts of sulphur and other dissolved chemicals.
这类水来源于地下水源，含氧量很低，还含有大量硫和其它化学物质。
When electricity, whether from photovoltaic cell, wind turbine or other sources, runs through the electrode, the cobalt and phosphate form a thin film on the electrode and oxygen gas is produced.
当电流——无论是来自光伏电池、风轮机还是其它来源——穿过电极时，钴和磷酸盐会在电极上形成一层薄膜，氧气就生成了。
Sources of oxygen include air, aerated water, and other oxidizing atmospheres.
氧的来源包括：空气、充氧的水以及其他氧化的大气。
Algae, these primarily aquatic organisms produce some 30 to 50 percent of the net global oxygen on earth and are important sources of food and crude oil.
海藻，主要生长在水中，输出百分之30到50的全球氧气总量，还是食物和原油的重要来源。
Scattered distribution of lead, hydrogen, oxygen and sulphur isotopes in the gold deposits is possibly indicative of diverse sources of ore_forming materials.
金矿床的铅、氢、氧和硫同位素组成高度分散，表明成矿物质具有多来源性。
Algae these primarily aquatic organisms produce some 30 to 50 percent of the net global oxygen on earth and are important sources of food and crude oil.
海藻，主要生长在水中，输嘲分之30到50的全球氧气总量，还是食物和原油的重要来源。
Light sources launch driven, light signal reception, signal conditioning, and data acquisition system were designed, and signals for calculating oxygen saturation were acquired by these circuits.
论文设计了光源发射驱动、光信号接收、信号调理及数据采集等硬件电路，以获得计算血氧饱和度所需的信号。
Light sources launch driven, light signal reception, signal conditioning, and data acquisition system were designed, and signals for calculating oxygen saturation were acquired by these circuits.
论文设计了光源发射驱动、光信号接收、信号调理及数据采集等硬件电路，以获得计算血氧饱和度所需的信号。
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