那男孩是在城里长大的，所以觉得很难区别杨树和柳树。
Bring up in town, the boy find it difficult to separate a poplar from a willow.
那男孩是在城里长大的，所以觉得很难区别杨树和柳树。
Brought up in town, the boy finds it difficult to separate a poplar from a willow.
那男孩是在城里长大的，所以认为很难区别杨树和柳树。
Brought up in town, the boy finds it difficult to separate a poplar from a willow.
我把我们村子的位置指给他看。村子就坐落在距离教堂一英里多远的平坦河岸上，四周矗立着赤杨树和截梢树。
I pointed to where our village lay, on the flat in-shore among the alder-trees and pollards, a mile or more from the church.
双方还正式签署了合作协议，进一步巩固了中方与意大利主要杨树和柳树研究人员、种植者、消费者的长远合作关系。
Formal agreements for cooperation were signed and new relationships were cemented for future collaboration with key poplar and willow researchers, growers and users in Italy.
这里长着大量的地衣类植物，也反映出此地的恢复情况：富含鲑鱼的河流，以及白桦，杨树和枫树等树群都不断的变得兴旺茂盛。
The numerous lichens, however, mirror the areas resilience: Trout-rich rivers and stands of birch, aspen, and maple continue to thrive.
分析了互助安定苗圃的杨树和小麦、油菜的林粮间作，结果表明，间作不仅能够获得双倍的经济收益，而且能获得更好的生态效益和社会效益。
Intercropping of popular, wheat and rape were analyzed in An-ding Nursery Huzhu. The results showed intercropping may obtain double economy effect ecology effect and society effect.
鉴于杨树能够与多种作物兼容，农民们现在可以同时种植小麦、玉米和大量园艺作物。
Because of poplars' compatibility with many crops, farmers can now grow wheat and maize and an abundance of horticulture crops.
大片成行的杨树保护着曾经遭受洪水、大风、沙尘暴肆虐和土壤侵蚀的农田，从而促进农业生产活动。
Large swaths of planted poplar trees now protect fields once ravaged by floods, wind, sandstorms and soil erosion, giving boost to agricultural activities.
在佐治亚州中部，生长有大量的枫香树和白杨树。
In central Georgia, sweetgum and poplar trees grow in large Numbers.
郑宇光和杨树荫60多岁，已经退休，分别是一名儿科医生和化学家。
Yuguang Zheng and Shuyin Yang were retired and in their 60s. A pediatrician and a chemist respectively.
它矮小平凡，旁边高大笔直的橡树和杨树让它相形见绌；坐着马车从它身边经过的游客都不会瞅它一眼，可能只有鸟儿和想吃松子的松鼠会喜欢它。
Squat, homely, dwarfed by the stately oaks and poplars nearby and unnoticed by the tourists passing in horse-drawn carriages, it's a tree that only birds and nut-hungry squirrels could love.
杨树较快的树叶分解速度和生物量增长可大大提高曾经是不宜耕作的沙质土的土壤肥力。
Faster leaf decomposition and biomass growth have created a much more fertile soil on once sandy land, which was not always suitable for cultivation.
开花的柳树和杨树产生的杨柳飞絮每年会导致许多人产生过敏症状，并引发呼吸系统疾病。杨柳絮还会降低城市道路的能见度。
Fluffy catkins, from blooming willows and poplars, are an annual annoyance for many people who suffer from allergies and respiratory diseases. They also reduce visibility on city roads.
杨树无色、无臭、无味，非常适宜制作水果箱、医疗工具、筷子、地板和家具，以及用来制造纸浆和纸张。
Poplar wood is colourless, odourless and tasteless, making it highly suitable for fruit boxes, medical tools, chopsticks, flooring and furniture and manufacturing pulp and paper.
这个公园有着大批山杨树的公园场地、草地、沼泽和小湖泊、落叶和寒带森林，骑马登山是一个顶级的观赏野生动物的活动。
Rich with aspen parkland and grasslands, marshes and small lakes, and spanning deciduous and boreal forests, Riding Mounting is a top wildlife-viewing locale.
我爱那漫山遍野彩色和明亮的山杨树！
I love it when there are entire hillsides with colorful and bright aspens.
在同国际杨树委员会和意大利国家杨树委员会两位东道主会晤时，赵深先生进一步强调了中国与国际杨树委员会和粮农组织的合作伙伴关系。
Hosted by the International Poplar Commission and the national Poplar Commission of Italy, Mr Zhao further strengthened China's partnership with the IPC and FAO.
鸟类学家们研究居住在靠近匈牙利南部feherto村的一小群鸟类，这个布满了环绕了柳树和杨树的鱼塘。
The ornithologists studied a small colony that was living close to the village of Feherto in southern Hungary, an area of fishponds surrounded by willow and poplar trees.
中国人工种植的杨树林和农林复合经营系统(杨树与农作物或畜牧生产相结合)约为800万公顷，是法国杨树种植面积的30倍。
The area of planted poplar forests and agroforestry (combining trees and crops or livestock) in China is about 8 million hectares, 30 times greater than the areas under poplar cultivation in France.
东北地区的大兴安岭、小兴安岭和长白山区，是中国最大的天然林区，到处是望不到边的红松、落叶松、黄花松等针叶林和白桦、柞树、水曲柳、杨树、榆树等阔叶林。
The Greater Hinggan, the Lesser Hinggan and the Changbai mountain ranges in the northeast are China's largest natural forest areas.
杨树根浸提液对大豆、萝卜的高生长，油菜的高生长和根长生长具有显著的促进作用。
The water extract of poplar root promoted seedling growth of rape, soybean, white turnip and root growth of rape.
我和乔根森在那个地方停下来，在杨树的荫凉处休息。
At that point Jrgensen and I paused in the shade of a cottonwood to rest.
天快要黑的时候，我们从白杨树里伸出头来，向上下游和眼前河面望了一阵。
When it was beginning to come on dark, we poked our heads out of the cottonwood thicket and looked up and down, and across.
采用田间试验的方法，研究杨树幼林与小麦间作系统中，设置根障对小麦生长和产量的影响。
The effect of root barrier on wheat growth and yield was studied in the system of poplar young growth intercropping with wheat by means of farm testing.
生长量是杨树的重要性状指标，但除此之外，容积密度和纤维长等在材性上表现较佳的优良品种的培育也越来越受到社会的关注。
Besides this, cultivation of excellent variety that has better performance in wood properties including bulk density and fiber length also has been gained more and more attention from society.
杨树是主要的工业用材树种和生物模式树种，具有重要的实用和理论研究价值。
Poplar has great practical and research value because it is a timber tree and a biological model tree.
杨树是主要的工业用材树种和生物模式树种，具有重要的实用和理论研究价值。
Poplar has great practical and research value because it is a timber tree and a biological model tree.
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