timber extraction是什么意思

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用法例句

Hotmelt adhesives to laminate ABC-pillars in automotive;

用于层压汽车ABC支柱的热熔粘合剂

Make Tea Industry the Pillar of Shimen County and Realize Sustainable Development;

立茶业为支柱 实现持续发展

The highly developed civilizitions of material, politics and spirit is the cornerstone of the civilized order in modern society, in which the combination of rule by law and the rule of virtue is the pillar.

高度发展的物质文明、政治文明和精神文明是现代社会文明秩序的基石 ,法德并举则是维系这个文明秩序的支柱。

And to and in the lateral and main advantage in wall in coal is :contracted to work of control the crest was apart from, reduced roof pressure,prop pressure,increasing density,strengthenning a pillar of prop up effectively.

并对并在煤壁侧的主要优点是缩小了工作的控顶距、减少了顶板及支柱压力,增加了支护密度、增强了支柱的有效支撑等。

Three parts—administration,academia and ideology,five props—teachers,library,laboratory,management towards cadres and education expenditure in management of colleges and universities are expounded.

高等学校管理有行政、学术、思想三个管理部分和教师、图书馆、实验室、管理干部、教育经费五大支柱。

The types of spherical tank column and connection structure between column and shell including a 10000 m 3 natural-gas spherical tank and a 3200 m 3 liquefied-petroleum-gas spherical tank were studied.

通过对 10 0 0 0m3天然气和 32 0 0m3液化石油气球罐不同支柱型式及其与球罐连接结构进行了研究 ,分别对操作工况和地震工况的应力进行了有限元分析 ,得出了一些结论 ,对合理选择球罐与支柱连接结构型式提出一些基本原

The paper introduces the develop and manufacture situations of the prestressed reinforced concrete mast for the high capacity headspan suspension and its main advantages.

本文介绍了大容量预应力钢筋混凝土软横跨支柱的研制情况及主要优点，对试用中发现的问题，提出了改进意见，并建议在电气化铁路上推广使用。

Finite Element Analysis and Strength Inspection of the Connections Between a 1000m~3 Butylene-1 Spherical Tank and Its Supports;

1000m~3丁烯-1球罐与支柱连接处有限元应力分析及强度校核

To improve the meshing at the connection of support to shell of spherical tank,HyperMesh 6.

针对球罐支柱与球壳连接处的有限元网格难以处理的问题,以1台2 500 m3丙烯球罐为例,采用有限元前后处理软件HyperMesh 6。

0 to simulate the situation of hydrostatic test, the stress distribution at the connection of support to shell of spherical tank was obtained.

0,模拟水压试验工况,对球壳与支柱连接部位进行应力分析。