Iron, nickel, copper, silver, gold, iridium , or ruthenium may be included as cocatalyst metals.铁 、 镍 、 铜, 银 、 金, 铱或钌,可用作复合催化剂金属.Countermeasures: join waxes cocatalyst so that the ink stick are shorter, withdrawal.对策: 加入...
And while I'm out you might clean up the kitchen.我不在的时候,你打扫一下厨房总该可以吧。The nation's advertisers need to clean up their act.该国的广告商需要规范自己的行为。Since then, the authorities have tried to clean up the sport.从那以后,有关当局已努力...