thinnings是什么意思

网络释义

用法例句

In this paper,based on analyzing experiment of Cunninghamia Lanceolata thinnings and the modification treat,the effect of the treating technological pa rameter on the physical and mechanical properties.

分析杉木间伐材的物理力学性质,通过与天然杉木材性的比较,表明杉木间伐材物理力学性质较差。

Study on the charring process of Chinese fir thinning wood under different conditions by comparisons of FTIR;

杉木间伐材炭化过程的FTIR光谱比较分析

Utilization of compressed Chinese fir thinning wood.;

杉木间伐材压缩密化利用的研究

Study on the compression and recovery set of Chinese fir thinning wood;

杉木间伐材压缩密化与回复变定的研究

Sdudy on the compound modification technology of thinning wood of Cunninghamia lanceolata using the ACQ and UF resin;

杉木间伐材ACQ与UF复合改性初步研究

Micromechanism of carbonization for thinning wood of Chinese fir;

杉木间伐材炭化过程微观机制分析

By techniques of one-step and two-step carbonization,capped and uncapped carbonization,with carbon dioxide,nitrogen,oxygen,air and their mixture as atmosphere gas,respectively,pyrolysis experiments on the thinning wood of Chinese fir,one of the fastest growing tree species in Southern China,are carried out.

采用一步炭化法与二步炭化法,加盖炭化法与未(不)加盖炭化法对杉木间伐材木 屑在不同炭化条件下进行热解研究,同时结合元素分析方法,探讨了杉木间伐材木屑炭化的固 体产物得率及其基本性质的变化规律。

By analyzing thermodynamics characteristic of fire retardant Chinese fir Thinning,the results showed that the fire retardant can make pyrolysis temperature of Chinese fir thinning decrease and change its original path,cause it to produce char and non flame substance,control the weigh loss velocity and prohibit flaming and afterglowin

采用动态热重法对杉木间伐材和阻燃杉木间伐材的热动力学特性进行分析 。

Developing the utilization of finger-jointed lumber of small size log from thinning by converting the short and crooked wood into long and straight one is of great importance.

间伐材指接胶合加工，变短材为长材，弯材为直材，为合理、效利用间伐材开辟了新路。

The Study on Environmental Friendly Compound Modified Technology of Thinning Wood Lumber Used in Garden;

园艺用杉木间伐材环保型复合改性技术的研究

Changing Rules of Components of Cunninghamia lanceolata Thinning Wood in Heat Treating Process

杉木间伐材高温热处理后化学成分的变化

Study on Mechanism of Carbonization for Thinning Wood of Chinese Fir and Application of Its Carbonized Materials in Environmental Protection;

杉木间伐材的炭化理论及其炭化物在环境保护中应用的研究

Experiment of Thinning Pruning and Medium-term Fertilization in Castanopsis Hystrix High-quality Timber Plantation

红锥优质用材林间伐整枝与中期施肥试验

Also, the feasibility of manufacturing UL-MDF using China fir-thinning as raw material was discussed.

研究探讨了利用杉木间伐小径材为木材原料生产超轻质中密度纤维板的可行性。

tractor for afforestation and timber-log collection

林用采伐集材拖拉机

To cut down(trees) and prepare as marketable timber.

砍伐，锯下…的木材砍伐（树木）准备做可交易的木材

unseasoned wood

未干燥的木材, 新伐下的木材

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,

Tree thinning was employed in later years.

在以后几年进行间伐。

the work of cutting down trees for timber.

砍伐树木以得到木材的工作。

European Federation of the Mining Timber Associations

欧洲采伐木材协会联合会

Lumber, bricks,)wool, grain and ore, too!

砍伐木材,砖块,)羊毛，谷粒和矿石,也!

THE CHOICE OF TECHNOLOGICAL TYPES OF AERIAL CABLEWAY SKIDDING FOR THE SMALL AREA CLEAR CUTTING

小面积皆伐集材索道工艺类型的选择

Discussin on Construction of Timber Forest during Short Rotation Cutting in Hubei Province

湖北省短轮伐期用材林基地建设探讨

Application of Calculating System of Timber Forest Logging

用材林森林采伐量测算系统应用分析

Estimation Method for Standing Tree Volume of Poplar By using Stump

利用伐根估算杨树立木材积方法研究