Similar words: substance, chemical, chemically, petrochemical, chemical change, chemical energy, biogeochemical cycle, substandard. Meaning: n. produced by or used in a reaction involving changes in atoms or molecules.
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31) The chemical substance extraction test and cell relative growth rate test were car-ried out on the 4 kinds of medical heat vulcanizing silicone rubbers from China and foreign countries.
More similar words: substance, chemical, chemically, petrochemical, chemical change, chemical energy, biogeochemical cycle, substandard, substantial, substantive, substantially, substantiate, insubstantial, unsubstantial, substantiation, ecological succession, polemical, academically, stance, euphemistically, distance, instance, assistance, resistance, for instance, stand a chance, happenstance, in the distance, equidistance, circumstance.