榆树

The selective response of three chafers to different plant leaves The number of beetles caught by castor-oil plant leaves were obviously more than that of control filter paper, cotton, sweet potato, soybean, Abutilon theophrasti Medic, peanut and elm leaves.

铜绿丽金龟和暗黑鳃金龟对花生、榆树、大豆的取食量都比较大。该结果说明，金龟甲对蓖麻的趋向行为可能不是为了取食或者说不单单为了取食，是否具有引诱其交配、产卵、栖息等行为，都是疑点，需要进一步研究。

Across the rain-drenched roadway was the town park:five acres of grass,giant elm tree and, tonight,an ankle-deep covering of cold water.

穿过湿透的路面是那城镇公园，五英亩的草地，巨大的榆树，还有今夜，那没及脚踝的冰冷的水。。。

Across the rain-drenched roadway was the town park: five acres of grass, giant elm trees and, tonight, an ankle-deep covering of cold water.

穿过潾潾的马路，对面就是小镇公园：5英亩的草地，高大的榆树。而今晚的它们，脚下多了一层齐踝深的积水。

Across the rain-drenched2 roadway was the town park: five acres of grass, giant elm trees and, tonight, an ankle-deep covering of cold water.

积满雨水的马路对过是小城的公园。那里有5英亩草地，巨大的榆树，而今夜还有一片齐脚面深的冰凉的雨水。

Based on the results of 16SrDNA and rp gene sequence analysis, CWB and SWB in China were identified and sorted as Aster yellows group (16SrI) and Elm yellows group(16SrV) respectively for the first time, and JWB and WJWB were proved to be the same pathogen.

根据16SrDNA序列分析和比较，首次将我国发生的苦楝丛枝病和国槐丛枝病进行了鉴定和归类，CWB为翠菊黄化组；SWB为榆树黄化组成员。

Based on Phylogenetic analysis of sequences from these 10 phytoplasmas using PAUP (phylogenetic analysis using parsimony) software, these phytoplasmas could be classified into five groups. These phytoplasmas groups and strains were: group 1, sweetpotato witches' broom, mainland China strain of sweetpotato witches' broom, peanut witches' broom and Ipomoea obscura witches' broom; group 2, loofah witches' broom; group 3, elm yellows; group 4, rice yellow dwarf and sugarcane white leaf disease; group 5, New Jersey strain of aster yellows and western strain of aster yellows.

从spacer序列堆衍的亲缘演化树显示这10种植物菌质体可分为5群：第一群，甘薯簇叶病、甘薯簇叶病、花生簇叶病及细花牵牛簇叶病等菌质体；第二群，丝瓜簇叶病菌质体；第三群，榆树黄化病菌质体；第四群，水稻黄萎病及甘蔗白叶病菌质体；第五群，翠菊黄化病菌质体。

Ainu used the bark of the Japanese elm Ulmus davidiana to make a strong fiber that was woven into baskets or, with the aid of a backstrap loom, a durable cloth that was the basis for Hokkaido Ainu clothing.

编篮阿伊努人以春榆树皮制作的纤维为原料，编成篮子。或是利用backstrap loom纺织出经久耐用，北海道阿伊努服装最惯常使用的布料。

The next time you're in Beulah, Michigan, look for that beautiful elm.

下一次，你若来到密些根的比拉，去看一看那棵美丽的榆树。

On December 17, there was a big new bolt through the tree, connecting the elm securely to the large tree trunk on the ground.

圣迭戈动物园熊猫馆里除了中国榆树挪位之外，还发生了其他的变化。12月17日，倒地的榆树树干已经通过一个新的螺栓安全地固定在地面上了。

Portland maintains at least 20,000 trees today, including about a hundred elm trees that survived a 1960s outbreak of Dutch Elm disease.

波特兰维护在今天至少存活20000棵，在20世纪60年代一种荷兰榆树病的爆发后保护工作使包括100种榆树生存下来。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。