杨树

The system could be applied in gene transformation of poplar.

结论］该系统可以应用于杨树的基因工程研究。

In addition, you are more likely to have greater wildlife diversity in poplar plantings than in agricultural fields.

而且与农田相比，你更可以在多彩多样的杨树林中体验野外生活的乐趣。

After a while,we found a shady place under some poplar trees.

过了一会儿，我们在杨树下发现了阴凉的树阴。

Yangpu District, meaning "Poplar Bank", is one of the 19 districts in Shanghai.

杨浦区，意思是"杨树银行"，是19个区在上海举行。

Poplar is one of the important sylvicultural and commercial tree ,it is very popular throughout the world,especially in china.

杨树是世界主要的造林和经济树种之一，在世界各地特别是中国均有广泛的栽培。

After a while,we found a shadyplace under some poplar trees.

过了一会儿，我们在杨树下发现了阴凉的树阴。

There is a positive correlation between the angle and the growth strain absolute size in poplars and pines.

杨树和火炬松生长应变绝对值和倾斜角度均呈正相关关系。

Taoxing branches reddening, Stir dip green, turn green poplars and orchards the main people, the shuttle busy pruning shears branches of a tree.

桃杏枝条泛红，柳丝沾绿，杨树返青，果园的主人们，穿梭忙碌着修枝剪杈。

Fast-growing poplars may be a profitable way to reforest China, but artificial, single-species forests are unattractive and ecologically unsound, writes Jiang Gaoming.

种植速生的杨树可能是一有利可图的绿化办法。但蒋高明指出，高密度、单一树种的人工纯林对国土生态贻害无穷。

In sunny days, Poplar sap flow density variations showed regular single-peak curve. The tendency of circadian rhythm was high in daytime, while was low at night.

晴天杨树液流速率日变化呈现规律的单峰曲线，表现为白天高，夜间低的昼夜节律变化趋势。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。