查询词典 poplar

The SEM images of the original poplar without explosion treatment show that wood fibre structure is tubular and denseness.

由于其具有复杂的立体结构，特别是木素的屏障作用，使得纤维素的水解率很低。

There are greater differences between the absorbing dust、sulfur dioxide and heavy metal capability of different types of trees. Synthetically Considering the purification function on the air pollution of trees, can divide the trees into : The first kind of comprehensive absorbability to the air pollution is relatively strong, pagoda tree, Apple, China Savin, Poplar; Second comprehensive absorbability in air pollution strong, such as Deodar Cedar, purple leaf Li, Glossy Privet; The third kind of comprehensive absorbability to the air pollution is medium-sized, such as the cedar , Pear , Evergreen Euonymus , peach, apricot, Huashan pine.

综合考虑植物对环境的净化作用，可将试验段生态防护林带的组成树种分为三类：第一类对环境净化能力很强，如圆柏、国槐、杨树、苹果等；第二类对环境净化能力强，如雪松、大叶女贞、紫叶李等；第三类对环境净化能力中等，如华山松、梨、杏、桃、黄杨等。

In order to investigate the static mechanic properties of wood-bamboo composite city bus- floor, elastic modulus and strength of component materials——poplar veneer, bamboo shoot and wood-bamboo composite city bus-floor were measured by uniaxial tension, electrometry and three-point bending.

为了考察木／竹复合城市客车底板的静态力学性能，本论文利用单向拉伸法、电测法和三点弯曲试验法对组分材料——杨木单板、竹片以及木／竹复合城市客车底板的弹性模量和强度等进行了综合研究。

Tetrastichus nigricoxae Yang is a endoparasite of Pupae of Micromelalopha troglodyta Graeser, Which is the mian pest of Poplar in China.

白蛾黑基啮小蜂是我国杨树人工林的主要食叶害虫——杨小舟蛾蛹期的一种内寄生性天敌。

I eulogize the tall and straight trunk of the white poplar.

我赞美白杨树那挺拔的株干。不适合

I like euphrates poplar because they symbolize the resilience of the Chinese nation .

我非常喜欢胡杨，它是中华民族坚韧不拔精神的象征。

They are known as the "hero tree", because a euphrates poplar can live for a thousand years.

我年轻时曾长期工作在中国的西北地区。

I like Euphrates poplar because they symbolize the resilience of

我非常喜欢胡杨，它是中华民族坚韧不拔精神的象征。

I like euphrates poplar because they symbolize the resilience of the Chinese nation.

这种伟大的精神，正是我们的民族饱经忧患而愈益坚强、生生不息的力量源泉。

I like euphrates poplar because they symbolize the resilience of the Chinese nation. starlets

我非常喜欢胡杨，它是中华民族坚韧不拔精神的象征。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。