- weathering testing
- 耐气候牢度试验法
English-Chinese lightIndusrty dictionary (英汉轻工业大词典). 2013.
weathering testing
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Weathering — This article is about weathering of rocks and minerals. For weathering of polymers, see Polymer degradation and Weather testing of polymers. Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through… … Wikipedia
Weather testing of polymers — is the controlled polymer degradation and polymer coating degradation under lab or natural conditions.Just like errosion of rocks, natural phenomena can cause degratation in polymer systems. The elements of most concern to polymers are… … Wikipedia
Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock … Wikipedia
National Centre for the Evaluation of Photoprotection — CNEP is a research center for durability prediction and failures analysis of plastics (polymer) materials. The increasing use of plastics in daily life and for high tech applications points out the necessity to improve their reliability. These… … Wikipedia
Saprolite — A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; beneath C is bedrock Saprolite is a chemically weathered rock. Saprolites form in the lower zones of soil profiles and represent deep… … Wikipedia
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tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
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Dealkalization — is a process of surface modification applicable to glasses containing alkali ions, wherein a thin surface layer is created that has a lower concentration of alkali ions than is present in the underlying, bulk glass. This change in surface… … Wikipedia
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