The woodcut "Autumn" was conceived as a harvest scene.木刻《秋》是按丰收的景象来构思的。Door - Goods ( left and right ) , Traditional Taohuawu Woodcut Woodcut New Year Picture, SuZhou.苏州传统桃花坞木刻年画《门神 ( 左右)》.The woodcut reproduced below ci...
异氰酸酯可由含氯的环(或非环)状分子氟化而得.The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.一种含氯的碳氟化合物,以前用作制冷剂和喷雾剂罐的推进物.A compressed inert gas a fluorocarbon, that acts a vehicle forthe contents ...