查询词典 white pine

Study on the Relationship between Pine Needle Terpene Content and Pine Caterpillar Development.

陈雄，1991。松树针叶萜烯类含量与马尾松毛虫生长发育关系的研究。

Tons annual production capacity of pine tar, pine naphtha 230 tons.

年产松焦油2800吨，松轻油230吨。

I plant the production of pine tar is based on natural forest resources in this region, rich in virgin forest in the end you loose after felling The remaining, dried root can be scientifically pine tar refining into products, over the years in accordance with the relevant user enthusiastic support, valuable improvements, and we practice in the production of machinery and equipment innovations gradually reform and boiler.

我厂生产松焦油是根据本地区自然森林资源，在原始森林中丰富的吗尾松砍伐后剩下的干枝，干根均可科学地提炼成松焦油产品，多年来根据有关用户热心支持下，提出宝贵改进意见，我们在生产实践中渐次革新机械设备和锅炉改革。

Pine tar is an effective antiseptic and disinfectant when applied to cuts on the skin, but Berkeley argued for the use of pine tar as a broad panacea for disease in general.

松焦油是一种有效地防腐剂和用于皮肤伤口的消毒剂，但是贝克莱认为松焦油可被普遍用于治病的万能药。

When big, moderate rain and rainstorm, the Y value size order is always the masson pine pinus elliottii mixed forest＜the wetland pinery＜the wetland pinery＜the locust tree forest＜the locust tree pinus elliottii mixed forest＜the thin forest, to the soil protection effect, the conifer forest is better than broad leaved forest. For annual rainfall erosion, the Y value ordered: Locust tree forest＜wetland pinery＜locust tree pinus elliottii mixed forest＜wetland pinery＜masson pine pinus elliottii mixed forest＜thin forest.

大、中雨和暴雨时，Y值的大小顺序都是马尾松湿地松混交林＜湿地松林＜湿地松林＜刺槐林＜刺槐湿地松混交林＜疏林，对土壤保护效果针叶林优于阔叶林；对于年降雨侵蚀，Y值的大小顺序是：刺槐林＜湿地松林＜刺槐湿地松混交林＜湿地松林＜马尾松湿地松混交林＜疏林。

Pinewood nematode Bursaphelenchus xylophilus Nickle, which is one of alien invasive species in China, caused pine wilt disease having threatened pine forest and caused serious great impact on forest including economic, environmental and social affects in China.

松材线虫Bursaphelenchus xylophilusNickle是中国重要的外来入侵种，由它引起的松材线虫病对中国森林构成严重威胁，它对林业将产生重要的影响，包括经济、环境/生态和社会的影响。

A summary of the occurrence and development of pinewood nematode disease was provided in this paper. Based on the practice for controlling this disease, five management strategies for pine wilt disease are considered from five aspects, namely laws and regulations, the national quarantine system, science research and application, public and professional education on pine wilt disease.

笔者对中国松材线虫病的发生和发展现状进行了概述，并结合中国在松材线虫病控制方面的实践，提出考虑从五个方面即法律和法规方面，国家体制和机制方面，科学研究与科技支撑方面，技术推广应用方面和科学普及与公众教育方面来考虑中国松材线虫病管理策略问题。

It is the Pinyon Trees that address you today, and all varieties that produce pine cones with pine nuts.

今天由我们矮松和所有能结出有松仁果的可食松向你们传达信息。

In previous years I had often gone prospecting over some bare hillside, where a pitch pine wood had formerly stood, and got out the fat pine roots.

几年前，我常常在光秃秃的山顶上侦察，那地方曾经站着一个大松林，我找到过一些油质多的松根。

Based on the technical maturity with an emphatieal considering economic maturing and on approprite considering of guantitative maturity, it determined the felling age of masson pine pulpwood on different site index and different grow model, the best manage model on different seed provenance and different site index; the felling ages of masson pine pulpwood in Hubei Province were from 15 to 26 years old.

根据"以工艺成熟为基限，重点考虑经济成熟，适当兼顾数量成熟"的原则，确定不同立地、不同栽培模式下马尾松纸浆林的主伐年龄及不同种源、不同立地指数的最佳经营模式，提出湖北省马尾松纸浆林的主伐年龄在15～26 a之间。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。