查询词典 birch camphor

The current developments were summarized and the research contents of this thesis were described.In the second chapter, a simple procedure is described for the simultaneous extraction and determination of betulin and betulinic acid in white birch bark. To compare extraction efficiency, effect of white birch bark growing in different locations and different extract solvents on the content of betulin and betulinic acid were evaluated.

第二章建立了一种简单、准确度、灵敏度高和重现性好的RP-HPLC同时测定白桦树皮中白桦酯醇和白桦酯酸含量的方法，并用这种方法研究了提取溶剂以及产地对树皮中白桦酯醇和白桦酯酸的含量影响，确定了最佳的提取工艺。

This results indicated that peashrub shrubland created a favorable N condition for its invading the meadow and being invaded by birch forest, and played a important role in altering the successional direction of meadow→peashrub shrub land →birch forest.

尽管箭叶锦鸡儿灌丛植物叶片与凋落物中全N、全P浓度在大多数取样点上都低于硕桦，但表层土中全N浓度高于硕桦和草甸，且其土壤有机质的供氮能力以及维持氮素能力都高于硕桦林和草甸，表明，锦鸡儿灌丛为侵入草甸和硕桦入侵提供了良好的养分条件，在该演替序列的发展过程中起了一定的推动作用。

Manual, recommending birch for treating the purulent wounds, the prolongedly unhealing ulcers, advises:"so that the rotten meat from the ulcer was eaten away, ground birch crust should be poured into the rotten wound ".

古俄罗斯医学手册推荐桦树治疗伤口化脓，prolongedly溃疡愈合，劝告：&使肉烂的溃疡是蚕食、地壳地面桦树应排入烂伤疤&。

Autumn, my girl Sitting on a fallen white birch And the white birch forest got the Corrupt breath of her body.

秋天，我的姑娘坐在一棵伐倒的白桦树上整个白桦林染上了她身体的腐败气息。

E.g., Allergy to hazelnuts is common in areas with many birch trees, where birch pollen hay lever is frequent

榛实敏感症一般发生在有许多桦树的地区，在这些地区经常发生桦树花粉热

By the analysis of the dead leaves and branches and the holding water contents of five type standing forests—birch and larch mixed forest, larch planted forest, Chinese pine planted forest, birch natural forest and shrub forest in Wutai Mountain area, central Asia alpine region, the water conservation benefit among them was compared.

为了探讨不同林分水源涵养功能，为地域林业发展树种规划提供技术依据，该研究以中亚高山区五台山林区内五种不同类型林分为试材，调查分析了不同林分的枯落物及其持水量，比较了不同林分类型的涵养水源效益。

The water conservation benefit of soil for different forests was 277.28%-173.67% higher than that of grass slope, among them, the highest one was birch and larch mixed forest, the followings were larch planted forest, Chinese pine planted forest, birch natural forest, and the lowest one was natural shrub forest.

林地土壤的涵养水源效益比荒草坡高277.28%~173.67%，其中白桦落叶松混交林最高，落叶松人工林、油松人工林、白桦天然林次之，灌木林最低。

The birch bark culture is a kind of location culture, and it came to being when human being began to use the birch bark to make their daily tools of production and life in the process of social and historic development.

桦树皮文化是人类在社会历史发展过程中使用桦树皮制作生产生活用具而产生的一种地域文化，它包括物质文化和精神文化两个方面。

IN CHOICE OF SOFT MAPLE,HARD MAPLE,CHERRY,RED OAK,HICORY,WALNUT,WHITE ASH ,WHITE BIRCH ,KONTTY PINE,RED BIRCH,ALDER,BAMBOO,BUTTERNUT ,BEECH AND QUARTER SAWN OAK.

用IN表示选择的范围，软枫，硬枫，樱桃，红橡，山胡桃，胡桃，水曲柳，白桦，多节松，红桦，ALDER不知道，竹子，BUTTERNUT不知道，四分之一切橡木。

The experiment also indicates that the distribution of contents of total phenol was opposite: in white birch, lower parts were higher and in European White Birch, upper parts were higher.

在雪兔选食的过程中，虽然并不回避任何一个种源的桦树幼苗，但它们明显喜食来自中国的白桦，这一结果没有支持过去欧美学者提出的有关理论。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。