It is an efficient path to enhance anaerobic digestion by adjusting nutritive proportion and adding trace metal ions.
可见，在厌氧消化系统中调节营养比例、添加微量金属元素是提高厌氧消化效率的有效途径。
The mass and trace metal element contents in the plant had to be measured in grade estimation of farm enviroment.
植株金属元素含量是农田环境质量评价中的必检项目。
Square wave stripping voltammetry (SWASV) was a high sensitivity electrochemical methods to detect the trace metal ions.
方波溶出伏安法(SWASV)是测定痕量金属离子的一种高灵敏度的电化学方法。
The thermodynamics calculation also indicate the transformation of trace metal was different with different atmosphere, suboxidized and reduced species were more easily formed under reduced condition.
热力学计算也表明不同气氛下痕量元素的形态变化过程有很大差异，还原气氛下痕量元素会生成不稳定的次氧化物和还原性产物。
The thermodynamics calculation also indicate the transformation of trace metal was different with different atmosphere, suboxidized and reduced species were more easily formed under reduced condition.
热力学计算也表明不同气氛下痕量元素的形态变化过程有很大差异，还原气氛下痕量元素会生成不稳定的次氧化物和还原性产物。
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