2) standing tree
活立木
1.
And it described the research progress of stress wave technique inwood and standing tree at home and abroad.
在简单介绍应力波无损检测技术的基本原理、特点以及目前应力波主要的检测设备同时,对国内外应力波无损检测技术在木材和活立木领域的研究进展做了叙述,分析了现阶段应力波无损检测技术存在的问题,并对应力波无损检测技术进一步发展做了展望。
2.
Theoretical evidence that impact stress wave can travel in standing trees and the research development of using the wave for the detection of mechanical properties of standing trees are stated.
论述了应力波在活立木中传播的理论依据以及在检测活立木力学性质方面的研究进展,以一套典型的检测装置为例说明实际的检测方法,并对冲击应力波评价活立木力学性质的发展趋势进行了预测。
3.
This paper introduces the current research and development on elastic wave tomography technique for detecting internal defects in standing trees.
介绍弹性波层析成像技术应用于活立木内部缺陷检测的研究现状,阐述弹性波的产生、传播途径和成像原理,总结该技术在应用中出现的问题。
3) living woods
活立木
1.
It holds that establishing a living woods trade market not only can accelerate the development of forestry,realizing prescriptive transform of the forest resources,but also can raise percentage of forest cover and improve the environment,making important effects on the sustainable development of forest resources.
建立河南省活立木交易市场不仅能够促进全省林业发展,实现林木资源的规范流转,提高林农的经济收益,而且还可以提高森林覆被率、改善生态环境,并对林木资源的可持续发展起着重要作用。
2.
The trade of living woods is the outcomes of commodities economy,the essence of it is the transaction or transfer the possession of the ownership of forest or the woods by compensation.
活立木交易是商品经济发展的产物,其实质是林地使用权和林木所有权的有偿转让或买卖。
4) standing trees
活立木
1.
Nondestructive evaluation(NDE) of wood quality in standing trees is an important procedure in the forest operational value chain worldwide.
采用应力波对活立木无损检测是近年来逐渐兴起的研究热点,主要包括检测立木缺陷与评价立木力学性质,后者对人工林营林及增加其经济效益有重要意义。
2.
However the mechanism of stress wave propagation on standing trees is not well understood and the research in this area is lacking.
本文以三根新鲜砍伐的美国红松原木作为模拟立木的测量对象,在前期测量应力波到达红松内部多个位置传播时间试验的基础上,采用科学分析软件MATLAB编写处理程序,形成可以实现研究目的的合理算法,处理实验数据,构建应力波在活立木中传播的三维波形。
3.
In order to make practical non-destructive evaluation on the health of standing trees or to detect the inner defects in logs after tree felling during the winter period,the stress wave velocities propagating in Larix olgensis standing trees under a freezing condition,and the effects of light and moisture content on stress wave velocities were investigated under low temperature(below 0℃).
为进行冬季活立木健康检测和伐后原木内部缺陷无损检测,该文在冻结状态下,研究了应力波在长白落叶松活立木中的传播速度,以及光照条件对含水率及应力波在活立木中传播速度的影响。
5) timber market
木材市场
1.
In the light of the resource supply and actual demand structure of timber market, timber saving and substituting countermeasures should be taken.
从中国木材市场的资源供给和实际消费结构看,解决木材供求矛盾的主要途径,近期要切实采取木材节约代用措施,同时根据市场需求适当进口木材。
2.
This paper introduces the status quo and development trend of China\'s timber market.
本文介绍了中国木材市场供需和进口现状及发展趋势。
6) nursery stock markets
苗木市场
1.
A investigation oint the nursery stock markets in Beijing and other cities was made, analyzing the prices and the factors that affect them.
通过对北京市园林绿化苗木市场及外地苗木市场进行调查 ,分析园林绿化苗木的价格及其影响因素 ,以了解北京市园林绿化苗木市场的现状 ,对促进北京市园林绿化苗木市场的繁荣和发展提出建
补充资料：证券发行市场（一级市场、初级市场）
证券发行市场（一级市场、初级市场）——
证券发行市场又称一级市场或初级市场，是发行人以筹集资金为目的，按照一定的法律规定和发行程序，向投资者出售新证券所形成的市场。证券发行市场作为一个抽象的市场，其买卖成交活动并不局限于一个固定的场所。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条