The best fungicides are 1 % Bordeaux mixture, 50 % Tuzet ( diluted 600 times ), and 50 % Ambam ( diluted 800 times ).化学药剂以 1∶1∶100 的波尔多液, 50%退菌特可湿性粉剂600倍液和50%代森铵800倍液防治效果较好....
The fading reaction of DCB arsenazo with Cr 2 O 2 - 7 was studied.本文研究了DCB偶氮胂与Cr2O2-7的褪色反应.Cars were covered with clear-coat finish at the factory to protect the underlying paint from fading.工厂给汽车上了透明罩漆，以防底漆褪色。Hopes of a...