It is separated from the xylene mixture by crystallization or zeolite adsorption.
它由二甲苯混合物经结晶或沸石吸附分离制得。
The solvent is a mixture of acetone and xylene.
溶剂为丙酮和二甲苯的混合物。
It indicated that the mixture of benzene, toluene and xylene exposure during pregnancy may affect the intelligence development in offspring.
提示，孕期接触苯系混合物对子代的智力发育可能有一定影响。
It indicated that the mixture of benzene, toluene and xylene exposure during pregnancy may affect the intelligence development in offspring.
提示，孕期接触苯系混合物对子代的智力发育可能有一定影响。
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