poison free preservation of timber

Some measures to establish the environment security system were given in order to reduce the threat of EEDS harmfulness in wood preservation in China.

简要介绍了环境激素的定义、种类和危害,论述了木材防腐剂的部分环境激素的危害,提出了构建我国木材保护环境安全的对策建议。

Status and Development of Wood Protection Industry in China

我国木材保护工业的现状及发展对策

The Relation of Wood Science and Technology and Natural Forest Protection Project in China;

中国木材科学技术与天然林保护工程

Effect of Two Water Born Rosin on Wood Protection

两种水基松香制剂对木材的保护作用

It is normal to rely upon paint or varnish to protect the exposed wood surfaces.

一般是用油漆或清漆来保护暴露的木材表面。

On China Timber Industry Development and Ecological Conservation;

关于中国木材产业发展与生态保护关系的思考

Effects of the Natural Forest Protection Project on Timber Related Industries and Its Countermeasures;

天然林保护工程对木材相关行业的影响及对策

Function Of Timber Inspection Job In The Implement Of Natural Forest Protection Engineering

木材检验工作在实施“天然林保护工程”中的作用

Windbreaks not only protect land and crops from the wind. They can also provide wood products.

防护林不仅能保护土地和庄稼免受狂风的侵蚀，还能提供木材制品，

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

It is necessary to protect trees from the frost.

必须保护树木免受霜冻。

We must safeguard forest timber.

我们必须保护林木。

support, secure, or raise with a block.

用木块支持，保护，或提高。

Preservation and Restoration of Bamboo andWooden Articles

竹器木器保护与修复

Is there any law to protect the trees?

有保护树木的法律吗？

Locate near shrubs or trees to give birds protection.

位于灌木丛或树木附近，用来保护鸟类。

Conservationists had to carry on a constant struggle against lumber companies, ranchers, and homesteader.

而资源保护学家们不得不和木材公司、牧场主以及分得土地的移民进行不断的斗争。

So the wood remains in its swollen dimensions.

所以木材仍保持其膨胀时的体积。

The Study on Wood-Rubber Multifunctional Environmental Composite Panel;

木质—橡胶功能性环保复合材料的研究