The geographical location of the phosphoric acid plants follows a different pattern.
磷酸厂的地理位置遵循不同的布局。
Phosphatidyl choline is a naturally occurring molecule that is composed of choline, phosphoric acid and hydrocarbons.
磷脂酰胆碱是一种自然发生的分子，它是胆碱，磷酸和碳氢化合物组成。
Hot-process phosphoric acid contains a little impurities which are mainly Pb and very little Zn, Cu, Ni, Mn, Cr and Cd.
热法磷酸中含有少量重金属杂质，主要是铅以及微量的锌、铜、镍、锰、铬和镉等。
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