birch

Birch trees sprouted from the rubble and grew into a dense young wood .

桦树从瓦砾中长出来，形成了一片茂密的新林。

The birch has smooth bark and slender branches .

桦树有光滑的树皮和细长的树枝。

The birch is still considered a protection against evil spirits by some people in northern Europe .

一些北欧人仍然认为白桦可以辟邪。

Just walk to that clump of birches at the turn .

就走到转弯处那丛桦树那儿。

Sumac trees have economic , birch , linden trees , such as EVA parker .

经济林木有漆树、桦树、椴树、桦柏等。

Seed of birch flies from the time of seed maturity in July until the following spring , but aspen seed only during a short period in summer .

桦树种子从7月份种子成熟开始飞散，一直到第二年春天，但白杨的种子仅在夏天短期内就飞散完毕。

In Beijing , for example , the most common allergenic pollens in spring include those from the large-fruited elm tree , Cathay poplar , ash , acacia and white birch .

以北京为例，春季最常见的致敏花粉包括榆树、杨树、白蜡、合欢树和白桦的花粉。

Advances in Research on Processing Technology of Birch Sap in China

桦树汁加工利用研究进展

Application of birch algorithm in adaptive Web site design

BIRCH算法在自适应WEB设计中的应用

Study on the three kinds of birch from big Xian mountain

大兴安岭三种桦木构造与材性的比较研究

A Study on the Drying Characteristics of Small Diameter Birch Logs

桦木小径原条干燥特性的研究

He used a piece of birch to make a small boat .

他用一块桦木做一只小船。

Research of extrusion composite technology of birch fiber and polypropylene

桦木锯屑/聚丙烯挤出复合技术研究

BIRCH algorithm is a clustering algorithm for very large datasets .

BIRCH算法是针对大规模数据集的聚类算法。

Experimental study of antitumor effects produced by the extraction of birch bark

桦树皮提取物抗肿瘤作用实验研究

Effect of Drying Condition on Shrinkage of Small Diameter Birch Logs

干燥条件对小径桦木干缩性能的影响

MRNA differential display system of Birch was established .

建立了适应白桦的mRNA差异显示分析体系，优化了反应条件和反应程序。

Parameter Selection of Dyeing Technology for Core and Surface of Birch Veneer

桦木单板芯表层染色工艺参数的遴选

Stress of Surface Layer of Small-Diameter Birch Timber with Different Heating Methods

不同加热方式下白桦小径木锯材的表层应力

It is a life culture created on the abundant northern birch materials .

桦树皮文化是依托北方丰富的桦树资源而创立的生活文化，在生活中表现为丰富多彩的桦树皮制品，是北方民族物质文化的重要内容；

A Method for DNA Extraction from Mature Birch Leaves Rich in Polysaccharide

富含多糖的白桦成熟叶片DNA的提取方法

The Preliminary Study on Drying Process Traverse Strains of Asian White Birch

白桦木材干燥过程横纹流变特性的初步研究

Preliminary Approach to the Drying Feasibility of Small Diameter Birch Logs

桦木小径原条干燥可行性初探

The health protection function of birch juice in the Qinling Mountains

谈谈秦岭桦树汁的滋补保健作用

This paper described the antiseptic method of birch .

本文叙述了桦木的方法。

Change of surface properties during oxygen bleaching of birch sulphate pulp

氧漂期间桦木硫酸盐纸浆表面性质变化的探讨

Research on Birch Clustering Algorithm Based on Latent Semantic Indexing and Immunological Learning

基于潜在语义索引和免疫学习的BIRCH聚类算法研究

Studies on the Optimum Plantation Density of Artificial Birch Forest

营造白桦人工林最佳初植密度研究

The birch bark culture is an component part of the primitive human culture .

桦树皮文化是人类原始文化的组成部分。

As the area of natural birch forest operation to provide a theoretical basis and technical support .

为该地区天然白桦次生林的经营提供理论依据和技术支持。