造成金属锈蚀、木材腐朽、水泥风化等破坏现象。
Caused by metal corrosion, wood decay, weathering and other damage to concrete phenomena.
采用SEM法观察了各种木材腐朽菌在木块内部的生长状态。
We have observed the fungi growth state inside of the wood block by SEM.
这两种木材腐朽菌均生长在阔叶树腐朽木上，造成木材白色腐朽。
Both species occurred on rotten angiosperm wood, and caused a white rot.
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。
Wood decay fungi, such as Trichoderma sp., after they attach themselves to the surface, secrete a whole family of cellulolytic enzymes.
用各种木材腐朽真菌及粗酶液处理化机浆，检测其对提高纸浆白度和抑制纸浆热返黄的作用。
The ability of different kinds of wood rotting fungi in increasing brightness and suppressing heat induced color reversion of CMP was studied.
在经济价值方面，有食用菌77种，药用菌43种，毒菌24种，木材腐朽菌93种，树木共生菌32种。
In the economy meaning, there are 77 edulis fungi, 43 medical fungi, 24 poisonous fungi, 93 ectotrophic mycorrhiza fungi and 32 wood rotten fungi.
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 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.
这些木材已经腐朽了。
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。
The strength factor is more slowly altered, and frequently the decayed wood is still usable in the early stages of decay.
并在此基础上，研究木材中细胞次生代谢产物——二苯乙烯类化合物的含量与木材对真菌腐朽耐受性的相关性。
On the basis of this, the relationship between concentrations of stilbenes in the samples and the heartwood resistant ability was studied.
尚层装饰发现曲廊同时具有旧建筑的结构作用，廊的钢结构梁柱替换了局部旧建筑中腐朽的木材，使新与旧“长”在了一起。
The curved corridor has the structure function of old architecture, the steel structure beam column replaces the decayed wood in the old building, and makes the new and old grow together.
简单介绍了专家系统在林业上的应用，详细阐述了木材内部腐朽特征识别专家系统的设计过程。
The application of expert system on forestry is introduced simply in the paper. The design process of expert system of identifying inner decay of timber is expounded.
我国北方农村的建筑用材，多以杨、柳、榆等速生树种为主，但这些木材易发生腐朽与虫蛀。
Most structural timber species now used in the North China's rural areas are poplar, willow, elm etc, which are fast growing trees but whose woods are very susceptible to biological deterioration.
它们主要是些森林食腐动物，多侵害潮湿腐朽的木材。
They are mainly forest scavengers infesting damp, rotted wood.
众所周知，木材是容易腐朽的。
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。
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.
此外，许多新的木材玷孔虫和腐朽菌也随进口木材引入了这些国家。
In addition new borers and fungi have been introduced on imported materials.
此外，许多新的木材玷孔虫和腐朽菌也随进口木材引入了这些国家。
In addition new borers and fungi have been introduced on imported materials.
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