He was found guilty of forgery.他被判伪造罪名成立。Experts are dismissing claims that the painting is a forgery.专家排除了这幅画是赝品的说法。The painting was a forgery.这张画是赝品....
不完全的燃烧和不适当的通风条件能导致乙炔的产生.Incomplete combustion and improper draft conditions can cause ethylene formation.这种反应构成了制备芳基环丙基乙炔的有效方法.This sequence constitutes an efficient method for preparing arylcyclopropylacetylenes.丙二烯是甲基乙...