您要查找的是不是：
- Evodia Rataecrpa( Juss) Benth is an ideal medical economic tree species for intercropping between grain and forest. 吴茱萸是粮林间作理想的药用经济树种。
- Study on Construction of Biological Firebreak Belt by Economic Tree Species 经济树种型生物防火林带营造技术研究
- Economic tree species 经济树种
- It's one of the tree species I have just learned to know. 我刚认识的树种。
- As a excellent tree species in the Pinus pinaster, slash pine is provided with fine biological characteristics and economic value. 湿地松有有优良的生物学特性和经济价值，是松属中的优良树种。
- China has the world's most ancient tree species -- metasequoia. 中国有世界最古老的树种 --水杉。
- Principal economic trees in South China. 华南主要经济树木。
- Dormancy Depth of Several North-east China Tree Species. 东北几个树种苗木的休眠深度
- Shanxi allspice tree species of medicinal and spice. 山西香果药用及香料树种。
- Lower slopes of the upper dry rainforest tree species. 为低山坡干性雨林中上层乔木树种。
- It is 700 metres in length and introduces 20 tree species along the walk. 树径全长700米,介绍沿途20种树木植物。
- The Comparison of Frozen Resistance of Several Tree Species of Ilex L. 几种冬青属植物抗冻能力比较。
- Pioneer Tree Species for Forestation in Sandy Land--Hippophae rhamnoides L. 沙地造林的先锋树种-沙棘。
- For the majority of tree species this method appears to be very well suited. 对于大多数树种来说，这个方法看来都是适合的。
- Some other applications of ornamental tree species were also introduced. 文中还介绍了观赏树木其它方面的用途。
- The more steady ascendent tree species are Q. acutissima, L. formosana, etc. 稳定的优势树种为麻栎、枫香等。
- Tungoiltree is one of the endemic industrial oil tree species in China. 油桐是我国特有的工业用油料树种。
- Takenowuchi H. &Zhu Tingcheng. 1959. Atalas of Economic Trees in Northeast China. Science Pree. Beijing. 竹内亮;祝廷成.;1959
- Two tree species, gingkgo and metasequoia, were involved in experiment plots. 试验地包括银杏、水杉两个树种。
- Leaders including nurseries, greenhouses, tea plantations, orchards, mulberry orchard planting economic trees and other land. 园地包括苗圃、花圃、茶园、果园、桑园和其他种植经济林木的土地。
