Formaldehyde is used as one of basic raw materials in syntheses of synthetic tannins.摘要甲醛通常是用于合成鞣剂制备的一种基本原材料.The chemistry of cyclopentadiene organometallic complexes including the syntheses properties and applications a...
He grandly declared that 'international politics is a struggle for power'.他一本正经地宣称“国际政治是一场权力之争”。Lucille's home was very grandly called a chateau, though in truth it was nothing more than a large moated far...
日文汉字的发音中有吴音、音 、 音及惯用音之分;有音读和训读之别; 还有同音和通音等等.The same kanji are pronounced, sometimes regularly just like the Chinese characters, sometimes totally differently....