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- Methods: In 23 patients with chronic functional constipation and 20 normal persons, total and segmental colon transit time (CTT) were determined by using radiopaque marks and calculated the transit index (TI). 方法:应用不透X线标志物对23例慢性功能性便秘患者(便秘组)和20例非便秘患者(对照组)进行结肠运输检查,测定全肠道通过时间和结肠分段通过时间,计算运输指数;
- Barium sulfate is a radiopaque substance. 钡硫酸盐是一种辐射光不能穿透的物质。
- He accused his teacher of unfair marking. 他指责教师打分不公平。
- He vainly tried to mark the defacing stain out. 他试图除去有损外观的污迹，但没有成功。
- She spent the evening marking examination papers. 她一晚上都在批试卷。
- radiopaque marking 不透X线标志
- A sinuous path, line, or marking. 弯弯曲曲的道路、线条或记号
- Marking the exam papers was quite a slog. 评阅试卷是很辛苦的工作。
- Her school work isn't quite up to the mark. 她的功课不大符合要求。
- That was just a lot of hot air what Mark said. 马克所说的不过是一大堆空话。
- War has left its mark on the country. 战争给该国留下了不可磨灭的痕迹。
- The public scandal left a black mark on his career. 这一尽人皆知的丑闻给他的事业留下了污点。
- How much do you know about the works of Mark Twin. 马克。吐温写的作品你知道多少？
- Happy anniversary, Helen and Mark! 海伦、马克，祝你们结婚周年快乐！
- Mark and Barbara are going together now. 马克与巴巴拉现在正在谈恋爱。
- Mark has lost his job and is worse off than ever. 马克的工作丢了，情况比以前更糟。
- He rubbed out the mark on his book. 他把他书上的记号擦掉了。
- Has she ever written a letter to Mark? 她曾经写信给马克吗？
- Everyone knows Tom as an easy mark. 大家都知道汤姆是个容易上当受骗的人。
- Do you feel up to the mark this morning? 今天早上你觉得怎么样。
