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- carbonyl stretching frequence 羰基伸展频率
- carbonyl stretching frequency 羰基伸展频率
- The frequency shift of carbonyl stretching bands has been found to be sensitive to the change of molecular conformation,inter and intramolecular interactions. 在红外光谱中羰基伸缩振动的变化可以看作是液晶分子相态转变的标志。
- The IR stretching frequency of amino group in benzene ha s a larger bathochromic shift than that in tetrachloromethane (CCl 4). 由于溶剂和氨基之间形成氢键,在苯和四氯化碳中,氨基的两个吸收峰明显加宽。
- The place used to be a stretch of barren land. 早先这里是一片不毛之地。
- Stretching out, he caught the child before it fell. 那小孩摔倒前，他伸手抓住了他。
- Can you work for six hours at a stretch? 你能不能不休息连续工作6小时吗？
- The lorry skidded on a stretch of black ice. 货车在薄冰路面上打滑。
- Alfred has done a stretch in Chelmsford Prison. 艾乐弗雷德已在切姆斯福特监狱服过刑。
- He did a long stretch for attempted murder. 他因谋杀未遂罪坐了很长时间的牢。
- I got out of the bed and had a good stretch. 我起床后舒服地伸了个懒腰。
- She worked for six hours at a stretch. 她连续工作了六个小时。
- The vast plains stretch for hundreds of miles. 辽阔的平原绵延数百英里。
- With a stretch of his arm, he reached the shelf. 他伸出手臂，够著了那个架子。
- In front of us we saw a stretch of open fields. 眼前我们看到一片开阔的田野。
- It feels good to stretch after a long drive. 开了很长时间车，舒展一下肢体会很舒服。
- A wide stretch of land spreads in front of us. 一片广阔的土地在我们面前展开。
- They don't want to stretch the meeting out. 他们不想把会议延长。
- A wide stretch of land spread in front of us. 展现在我们面前的是一片广阔的土地。
- She went out to stretch her legs after lunch. 她午饭後出去散步了。
