Caused by metal corrosion, wood decay, weathering and other damage to concrete phenomena.
造成金属锈蚀、木材腐朽、水泥风化等破坏现象。
Important tree pathogens and wood decay fungi are characterized for prevention and identification.
重要的树病原体和木头腐坏菌被用于预防和鉴定表现的特性。
Wood decay fungi, such as Trichoderma sp., after they attach themselves to the surface, secrete a whole family of cellulolytic enzymes.
木材腐朽真菌，如木霉，在它们附着在表面后，可分泌全部种类的纤维素酶。
The ultimate result of the wood decay under their action is that all components (cellulose and lignin) are removed in differing proportions at different rates, and the decayed wood is light- colored.
根据他们的行为，木材腐朽的最终结果是所有组成部分（纤维素和木质素）所占比例大小有不同比率的变化，并且腐朽的木材变成浅色。
The strength factor is more slowly altered, and frequently the decayed wood is still usable in the early stages of decay.
强度因素是缓慢改变的，并常常是腐朽的木材仍然是可用的衰败的早期阶段。
Where glulam beams will be exposed to weather, request a preservative-treated product or consider wood that has a natural resistance to decay, such as Alaska yellow cedar or Port Orford cedar.
凡集成胶合木梁材将要暴露在室外天气下，要求产品用防腐剂进行处理，或考虑运用具有天然抗腐烂的木材，如阿拉斯加黄杉木或港口奥福德杉树。
Change or Decay: Russia's Dilemma and the West's Response. By Lilia Shevtsova and Andrew Wood.
是变化还是衰退：俄罗斯的困境及西方的回应。作者丽莉娅·谢夫索娃、安德鲁·伍德。
With Huizhou wood merchants falling into decay in Modern times, Kaihua wood merchants in Western Zhejiang have rapidly grown into a major business group of the Qiantang River Basin.
徽州木商近代衰败的同时，以开化为代表的浙西木商却迅速成长为钱塘江流域主要商帮群体之一。
Lack of oxygen inhibited decay, and heat and pressure over millennia turned the wood into solid quartz colored by impurities like iron, carbon, and manganese.
缺乏氧气的抑制衰减，热量和压力，几千年来，把木材变成坚实的石英色彩的杂质一样，铁，碳，锰。
Wood density and mechanical properties were rapidly decreased with the increasing decay for larch and pine timber, the most is MOR, then crushing strength, and the density is the smallest.
落叶松和软木松木材随着腐朽程度的加重，力学性能迅速衰减，其中抗弯强度降低最为明显，其次是抗压强度，密度变化最小。
Most of the wood was so rotten that when they pulled it broke up into a shower of fragments and woodlice and decay.
大多数的树木都已腐烂不堪，一拉就碎，木屑四飞，还有纷扬的树虱和烂物。
Everything made of wood, hide, wool, linen, grass, hair, and similar materials will decay and vanish in dust in a few years or centuries, save under very exceptional conditions.
任何由木头、生皮、绒线、亚麻、草、毛发以及相似物质做成的东西除非在一些非常特殊的条件下，几年或几个世纪以后，会在尘土中腐烂并消失。
Common spacious dining-room in 1980s undergoes transformation from flat top to spire, that non-attractive wood structure seems to decay slowly without more attention paid.
80年代常见的大食堂，经过平顶变尖顶的脱胎换骨，那并不张扬的木结构也在不经意察觉的时间中缓慢蜕变。
Common spacious dining-room in 1980s undergoes transformation from flat top to spire, that non-attractive wood structure seems to decay slowly without more attention paid.
80年代常见的大食堂，经过平顶变尖顶的脱胎换骨，那并不张扬的木结构也在不经意察觉的时间中缓慢蜕变。
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