- surface disturbance
- 表面扰动
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… … Wikipedia
Disturbance (ecology) — Damages of storm Kyrill in Wittgenstein, Germany. In ecology, a disturbance is a temporary change in average environmental conditions that causes a pronounced change in an ecosystem. Outside disturbance forces often act quickly and with great… … Wikipedia
Surface runoff — Runoff flowing into a stormwater drain Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water… … Wikipedia
Free surface — In physics a free surface is the surface of a body that is subject to neither perpendicular normal stress nor parallel shear stress,cite web |url=http://www.vishay.com/company/brands/measurements group/guide/glossary/freesurf.htm |title=Glossary … Wikipedia
mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… … Universalium
Completion (oil and gas wells) — This article is about the oil or gas well completion. For other uses of completion, see Completion (disambiguation) In petroleum production, completion is the process of making a well ready for production (or injection). This principally involves … Wikipedia
conifer — /koh neuh feuhr, kon euh /, n. 1. any of numerous, chiefly evergreen trees or shrubs of the class Coniferinae (or group Coniferales), including the pine, fir, spruce, and other cone bearing trees and shrubs, and also the yews and their allies… … Universalium
Uranium mining — The Ranger Uranium Mine in Australia … Wikipedia
Monsoon trough — August position of the ITCZ and monsoon trough in the Pacific Ocean, depicted by area of convergent streamlines in the northern Pacific The monsoon trough is that portion of the Intertropical Convergence Zone (ITCZ) which extends into or through… … Wikipedia
Non-ionizing radiation — Different types of electromagnetic radiation Non ionizing (or non ionising) radiation refers to any type of electromagnetic radiation that does not carry enough energy per quantum to ionize atoms or molecules that is, to completely remove an… … Wikipedia
Penstemon haydenii — Taxobox name = Penstemon haydenii [cite web url=http://www.ars grin.gov/cgi bin/npgs/html/taxon.pl?27263 title=Penstemon haydenii information from NPGS/GRIN publisher=www.ars grin.gov accessdate=2008 07 25 last= first=] regnum = Plantae divisio … Wikipedia