使变质
3.To alter the structure of(a protein), as with heat, alkali, or acid, so that some of its original properties, especially its biological activity, are diminished or eliminated.
7.The influence of Ca and Na on phosphorus modification performance, the relation between constitution of compounds containing-phosphorus and modification performance in eutectic Al-Si piston alloys were investigated by optical microscopy and electron probe microanalyzers (EPMA).
8.The lower point age of zircon U_Pb discordia of LM rock and the date of regional gneiss in UHP block show that these two sorts of rocks were both affected by the thermal event in Caledonia. The Indosinian metamorphism reset the Rb_Sr system of LM rock,but did not affect the U_Pb system.
10.To render unfit to eat or drink without destroying usefulness in other applications, especially to add methanol to(ethyl alcohol).

