吡喃不是芳香的, 但眬英嗡离子是.Pyran is not aromatic, but the phrylium ion is.报道了氯化锌催化合成正辛基 -D- 吡喃葡萄糖苷反应机理的研究,考察了影响产物构型的因素.The mechanism to synthesize the octyl - D - glucopyranoside catalyzed by zinc chloride is suggested.0.2%α - 吡喃酮...
They were warlike and imperialistic.他们穷兵黩武，帝国主义色彩浓厚。Imperialistic aggressors always use gunboat diplomacy to invade countries.帝国主义侵略者总是向被侵略国施展他们的炮舰外交.Imperialist Competitive Algorithm An Algorithm for Optimization Inspir...
A water lily carpeted pond edges Grayling Lake Trail, north of Seward, Alaska.在阿拉斯加苏厄德北部的格雷林湖的小径旁, 有一处开满了荷花的池塘.The ground was thickly carpeted with pine needles.地上落了厚厚的一层松针。a comfortable, fully carpeted bedroom全部铺了地毯的舒适卧...