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- nucleophilic opening ring 亲核开环
- Open ring systems can avoid electromagnetic loop. 开放的环系统，可避免电磁环。
- After it was mixed with epoxy resin,transition state was formed first.Then they got on with opening ring reactions according to bimolecular nucleophilic substitution mechanism(SN2). 它与环氧树脂混合后首先形成过渡状态，然后按双分子亲核取代(SN2)机理进行开环反应。
- Practically, most distribution feeders are open ring systems with single circuit breaker configuration. 实际上，大多数配电馈线开放环系统与单断路器配置。
- Keywords Porous silicagel bond join Opening ring modified; 多孔硅胶;键合;开环;改性;
- an open ring of iron used in playing the game of horseshoes 做马蹄铁游戏时用的开放的铁环
- Pea pods burst open when overripe. 豌豆过熟就会爆裂。
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- We bivouacked on the open plain. 我们在开阔的原野上露营。
- an open ring of iron used in playing the game of horseshoes. 做马蹄铁游戏时用的开放的铁环。
- I had to use force in opening the door. 我不得不用力开那一扇门。
- This little gadget's great for opening tins. 这小玩意儿开罐头挺好用。
- She's go to play the opening bar of the sonata. 她准备演奏这支奏鸣曲的开始数小节。
- Two smaller screens will be opening in May. 五月份将有两家小型电影院开业。
- Thank you. How long will this offer be open? 谢谢。这个报价的有效期多长？
- Open the shutter and see what the weather is like. 打开百叶窗，看看外面的天气如何。
- The fresh air blew in from the open window. 新鲜空气从开着的窗户吹进来。
- Hum the opening bars of your favourite tune. 哼一哼你喜爱的曲子的开头几个小节。
- We were obligated to attend the opening ceremony. 我们有必要参加开幕式。
- The mayor made a speech at the opening. 市长在开幕式上发表了演说。
