1.
A Study on the Damage Rate of Residual Trees Caused by Chainsaw Selective Felling Operations Based on Multiple Regression Analysis
基于多元回归分析油锯择伐作业对保留木损伤率影响的探讨
2.
Effect of Chainsaw Selective Felling Operations on Damage Rate of Residual Trees Based on Multiple Regression Analysis
基于多元回归分析油锯择伐作业对保留木损伤率的影响
3.
A Study on the Ecological Effects and Operation Technology of Slective Cutting of Natural Mixed Stand of Conifer and Broad-leaved Trees;
天然针阔混交林择伐生态影响及作业技术研究
4.
alternate clera-strip system
交互带状皆伐式渐伐作业法
5.
strip-and-group system
带状群状渐伐作业法
6.
coppice of two rotations system
两次轮伐矮林作业法
7.
The choice of industry policies ot improve the step of changing into cities in Anhui province
加快安徽省城镇化步伐的产业政策选择
8.
Effects of harvesting operations on water quality of brooks in forest sites
森林采伐作业对迹地径流水质的影响
9.
The work or business of felling and trimming trees and transporting the logs to a mill.
采伐将树木伐倒、修整并运到锯木厂的工作或职业
10.
Application of Study Plot in Design of Clear Cutting System
标准地法在林分皆伐作业设计中的应用
11.
Postures for Chain Saw Logging Operations Based on Ergonomics
基于人机工程学对油锯伐木作业姿势的研究
12.
On the adjustment of the annual logging operations related to the issue of time
对调整年度采伐作业时间有关问题的探讨
13.
The Insured involves in mining, lumbering, building, transporting, waterborne, aloft, or other similar occupational activities.
被保险人涉及采矿业、森林砍伐业、建筑工程业、运输业、水上作业、高空作业之类职业活动。
14.
Second, foreign-funded enterprises have speeded up China's industrial restructuring.
作用力之二：外商投资企业加快了中国产业结构调整步伐。
15.
For mature timber stands, the approaches of selection cutting, clear cutting and shelterwood cutting
成熟的用材林应当根据不同情况,分别采取择伐、皆伐和渐伐方式,
16.
The Vigorous Scientific research Work of Wood Industry--Notes on the Trip to Czechoslovakia
充满活力的木材工业科研工作—捷克斯洛伐克纪行
17.
With the quickening of financial market construction, the time comes to adopt the open market operation policy.
随着金融市场化步伐的加快,公开市场业务操作的时机日臻成熟。
18.
Study on the Impacts of Forest Harvesting Methods on Physical and Chemical Properties of Site Soils;
森林采伐作业方式对林地土壤理化特性影响的研究