Protect your laptop against everyday hazardous element that may get in between the keys like dust, food particles, insects and liquid.
保护你的笔记本电脑，远离危险如灰尘，食物颗粒，昆虫和液体。
Results have shown that the lixivium concentration affected by leaching times, pH, leaching temperatures, and grain diameter values of the media and most parts of the hazardous element are stable.
结果表明，有害元素大部分以稳定态存在，浸出液浓度受浸泡时间、酸碱度、浸泡液温度、粒径的影响。
Base on the simulation experiments, hazardous minor element from coal mining wastes are studied in relation to their forms of occurrences and contents in coal mining rocks.
在静态模拟试验的基础上，研究了有害元素从煤矸石中浸出的浓度与其在煤矸石中的含量和赋存状态的关系。
Base on the simulation experiments, hazardous minor element from coal mining wastes are studied in relation to their forms of occurrences and contents in coal mining rocks.
在静态模拟试验的基础上，研究了有害元素从煤矸石中浸出的浓度与其在煤矸石中的含量和赋存状态的关系。
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