1) underground water supply line 地下给水管线 1. This paper introduces the necessity and importance of final survey of underground water supply line,expounds the contents of and methods for the surveying,and advances some suggestions. 介绍了城市地下给水管线竣工测量工作的必要性和重要性,阐述了测量...
The underground pipes can be set up in slinky, spiral, vertical, horizontal, or even in a water body surface. Two main techniques are applied in constructing the EAHE: indirect and direct earth contact (Jacovides et al., 1996). The direct earth contact comprises a partial or full building...
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8(b). The selected utility locates inside the selected land parcel and is a water supply main. As the current cadastral data is 2D in Singapore, the basic spatial relationships (e.g. within and cross) are used to query the relationship of land parcel and the underground utilities. In ...
Underground hollow pipe inspection system e.g. for water supply line - has hollow body feed system which allows flexible bending but is axially rigid for moving head for carrying video camera, test sensors, etc. and connected to central power and processing units....
P.S. Luther’s point about the “progressive view of government” is not just a throwaway line. He’s referring to the mindset that first appeared during the “Progressive Era” of the early 1900s, when politicians such as Teddy Roosevelt and Woodrow Wilson decided that government was a for...
General Production Line Configuration -steel pipe transmission system-surface treatment system-dust removal system-pipe heating system-electrostatic spraying system-coating system-water cooling system-end cutting system-hydraulic and pneumatic system-testing system-electronic control system...
and a warning tape is placed at the top of the pipe 30cm; the water supply pipe is usually covered with cement stone chips; the electric direct pipe is usually made of concrete. Therefore, when excavating the road trough, you should be careful of the underground pipe when you suddenly dig...
Application of Reference Line Surveying Method in Underground Piping Setting-out supports all the CNKI file formats; XC He - 《Bulletin of Surveying & Mapping》 被引量: 3发表: 2006年 Valve for making connection between underground main piping and underground branch piping supports all the CNKI fil...
System components include the main control computer, transducer, preamplifier, supply signal separator, external filter, attenuator, A/D converter, signal line and signal generator, which can realize the functions including signal acquisition, parameter extraction, waveform playback, data storage, graphic...