Callus Induction and Bud Formation of Ulmus thomasii;
美国岩榆愈伤组织的诱导及不定芽形成
Response to Light of Ulmus pumila in Different Soil Moisture;
不同土壤水分条件下白榆的光响应研究
Study on the Root Distribution Characteristic and Root Biomass of Ulmus pumila in Yanerwo Scenery Site of Urumqi;
燕尔窝古白榆根系分布特征
Effect of Paclobutrazol on Drought_Resistance of Populus alba × Populus berolinensis, Ulmus pumila, and Betula platyphylla;
多效唑对银中杨、白榆和白桦抗旱性的影响
Study on Introduction and Seedling-breeding of Rock Elms from America and Its Physiological Characters under Water-and-salt Stress
美国岩榆的引种育苗技术与耐盐耐旱特性研究
Study on the Resource Cultivation of Two Rock Elm Tree Species and Their Drought & Salt-resistance Characteristics;
两种美国岩榆的资源培育及抗逆性研究
An elm tree(Ulmus alata) of the southeast United States, having twigs with winged, corky edges.
翅榆一种美国东南部榆树（翼枝长序榆榆属），具有有翼和软木质的小枝
autumn-flowering elm of southeastern United States.
生长于美国东南部的秋天开花的榆树。
Desire under the Elms a Universal American Tragedy
《榆树下的欲望》一部具有普遍性的美国悲剧
elm of southern United States and Mexico having spreading pendulous corky branches.
生长于美国南部和墨西哥的榆树，有伸展的、摆动的、软木似的树枝。
Research on the Laws of Overlying Rock and Support Resistance of Yushuwan Coal Mine in Yushen Coal Area;
榆神矿区榆树湾煤矿覆岩破坏规律与支护阻力研究
INVESTIGATION ON THE DEATH REASON OF ELMS AS WELL AS DISCUSSION ON THE EXISTANCE OF DUTCH ELM DISEASE IN CHINA
我国榆树死亡原因探讨——兼析是否发生荷兰榆病
Problems and Control of Geotechnical Engineering of Anxi Yulin Grottoes;
安西榆林窟的岩土工程问题及防治对策
Lithologic reservoirs and the control factors of reservoir forming in Ciyutuo structural belt
茨榆坨构造带岩性油气藏及成藏主控因素
Released circle measurement technology and application to surrounding rock of mine roadway in Yujialiang mine
榆家梁煤矿巷道围岩松动圈测试技术及应用
boa of rocky desert of southwestern United States.
产于美国西南部多岩沙漠地区的蟒。
tall widely distributed elm of eastern North America.
广泛分布在北美洲东部的高大榆树。
Eurasian elm closely resembling the American elm; thrives in a moist environment.
与美洲榆极相像的一种欧亚榆树，；在潮湿的环境才能健康生长。
STUDY ON CRACK PETROGRAPHY--Evidence from the SEM Observation of the Rock Core from a Deep Drill Hole in California, U. S. A.
裂隙岩相学研究——以美国加州深钻岩心的扫描电镜观察为例
THE GEOCHEMICAL EVOLUTION OF HYDROTHERMAL FLUIDS IN PORPHYRY MOLYBDENUM DEPOSIT--TAKE THE AMERICAN HENDERSON PORPHYRY MOLYBDENUM DEPOSIT AS AN EXAMPLE
斑岩钼矿热液流体的地球化学演化——以美国亨德森斑岩钼矿为例
Seed zones of Chinese forest trees--Seed zones of Ulmus pumila L.
GB/T8822.13-1988中国林木种子区白榆种子区
