chemical present翻译

chemical present的基本解释

读音: 美: 英:

化学物质存在：指在某个物质或环境中检测到某种化学物质的存在。

例句

The actual chemical make-up of rocks is complex, so the conventions of petrological analysis pretend that these metals are present in basalt as their oxides.然而构成这种岩石的化学元素十分的复杂，因此根据常规的岩石分析得出出现在玄武岩里的金属都是其氧化产物。
Certainly, when Dr Luider applied a chemical stain specific to that protein to the plaques of dead Alzheimer’s patients he found the protein present in them.路德医生将针对该蛋白的特定化学染色剂注入死亡病人的大脑斑块中，从而证明了这一蛋白的存在。
Certainly, when Dr Luider applied a chemical stain specific to that protein to the plaques of dead Alzheimer's patients he found the protein present in them.当然，当路易德博士把这个蛋白质的化学着色剂用于患有老年痴呆症死者的大脑斑块时，就可以发现此种蛋白质。

短语

Be present during chemical testing 在现场视察化学试验
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