1) heading tunnel
小半断面
1.
<Abstrcat>Yanmenguan tunnel made use of inclined shaft for velltilation to add working face and adopted the construction technique of heading tunnel with less than half-section digging firstly,which shortened construction schedule greatly and achieved the social and economical benefits.
雁门关隧道工程施工中利用通风斜井增加工作面,并采用小半断面导洞优先贯通的掘进方法,极大地加快了工程进度,取得了良好地社会效益与经济效益。
2) half sectional area method
半断面法
3) T.H. (Top Height)
上半断面
4) small section method
小断面法
5) shrink sector
缩小断面
6) small section
小断面
1.
It is introduced that the manufacture and application methods of a new kind of small sample holder,which is used in spectral analysis of small section sample(5mm≤≤16mm)The holder has advantages such as accurate positioning,better analytical accuracyIt can be used for the analysis of small section samples with various shapes,thus the application area of spectrometer is extended
介绍了一种新型小样品夹具的制作及使用方法,用于小断面(5mm≤≤16mm)样品的光谱分析。
2.
The paper raises an idea about building small section subway in middling city of our coun- try,and discusses primarily the building cost,building technique and vehicle equipment,etc.
本文提出了在我国中等城市修建小断面地铁的设想,并就造价、施工技术及车辆设备等有关因素作了初步探讨。
补充资料：小半
1.谓少于一半。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条