This bypassed the problems associated with jellyfish collection and made it much easier to use bioluminescent reactions to detect the presence of calcium ions.
这就化解了和捕捉水母有关的难题，并且让使用生物荧光反应来侦测钙离子变得更加简单。
The collection capacity of heavy metal ions by porous powder made from fly—ash is studied.
用实验的方法研究了用粉煤灰制取多孔粉末材料对重金属离子的富集能力。
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