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- Due to the C3=C4 double bond, coumarins may undergo [2+2] cycloaddition and most of this kind of compounds have symmetry center. 香豆素类化合物由于存在C3=C4键,有可能发生[2+2]环加成反应,在此类化合物中,大多数晶体都采用中心对称的形式。
- Detection of Vehicle Symmetry Center Based on Machine Vision 基于机器视觉的车辆对称中心检测
- Having or marked by bilateral symmetry. 左右对称的以或表现为左右对称的
- He moved the table over to the center of the room. 他把桌子移到房间中心。
- The land is destined for a new shopping center. 这块地已被划作为营建一个新购物中心之用。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- The strikers paraded through the city center. 罢工队伍游行穿过市中心。
- A center of symmetry must coincide with the center of mass. 对称中心必须与质量中心重合。
- A system of roads radiates from the town center. 一个道路网从镇中心向四面八方伸展出去。
- The new hospital will be sited at the city center. 新医院将座落在市中心。
- New York is a great financial center. 纽约是一个重要的金融中心。
- The center of the sun is exceedingly hot. 太阳的中心极其热。
- To form the parts of with balance or symmetry. 使平衡，使对称形成带有平衡或对称的各部分
- Our city is the industry center of the country. 我们城市是全国的工业中心。
- They made a detour to avoid the town center. 他们绕道而行,避开市中心。
- A circle without a center is inconceivable. 一个没有圆心的圆是无法想像的。
- We decided to skirt round the town center. 我们决心绕过市中心。
- He was not insensible to her rosy symmetry. 他不可能对她那艳丽的面孔视若无睹。
- To avoid the city center, turn right here. 如果要避开市中心，请从这里向右转弯。
- Both are esthetic and depend much on symmetry. 两种活动都要求美感和匀称性。
