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- To mark elements that could be a root in the XML hierarchy. 用于标记XML层次中作为根的元素。
- In non-destructive X-ray fluorescence analysis with thick target, correction method for difference in fluorescence intensity of elements due to sample shape and different distance to the source detector with yttrium as an outer mark element was studied. 摘要在厚靶的非破坏性X射线萤光分析中，以钇做外标元素，研究了不同样品形状及与源、探测器距离不同时，引起接收到元素萤光强度差异的校正方法。
- He accused his teacher of unfair marking. 他指责教师打分不公平。
- In a printer, the removable type element. 印刷机上可拆卸的打印部件。
- 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。
- He's in his element when playing badminton. 他打起羽毛球来真是得心应手。
- This heater needs a new element. 这个加热器需要一组新电阻丝。
- 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。
- I'm out of my element in political discussions. 我不喜欢参加政治讨论。
- Maintenance of PC is in my element. 我对电脑的维修保养很在行。
- 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。
- Sulphur was not identified as an element until1810. 1810年以前还没有认出硫是一种元素。
- 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。
- The scientists are in search of a new element. 科学家们正在寻找一种新元素。
- How much do you know about the works of Mark Twin. 马克。吐温写的作品你知道多少？
- He was out of his element at the ball. 他在舞会上感到格格不入。
