海词手机词典

PW/MCM-41 catalysts consisting of H_3PW_(12)O_(40) heteropoly acid (PW) supported on MCM-41,a mesoporous molecular sieve, was prepared and the pore structure characterized by XRD and BET.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌