查询词典 bark

The results showed a betulin yield of 25.43%, a purity of 59.19% was achieved from 1g powder of B. platyphylla bark under the extraction temperature of 72℃, microwave power 67W, and extraction time 100s.

试验结果表明，1g白桦树皮粉末，在提取温度72℃、微波功率67W，提取时间100s的条件下，微波辅助提取的桦木醇收率达到25.43%，纯度达到59.19%。

BACKGROUND ＆ AIM: Betulin is an important triterpene. We investigated the antitumor activity of betulin, extracted from the bark of silver birch.

背景与目的：白桦酯醇是一种重要的三萜类生物活性分子，本文从白桦树皮中提取获得白桦酯醇纯品，然后研究该生物活性分子抑制食管癌细胞的活性。

And a birch bark compound, betulinic acid, is being tested as a treatment for melanoma and other serious diseases.

一、桦树皮大院桦木酸，正测试作为治疗黑素瘤和其他严重疾病。

A thick trunked tree of the bombax family, native to African: fiber from its bark is used for making rope, paper, etc., and the gourdlike fruit has an edible pulp.

由于植物学知识少得可怜，读过Webster的释义，疑惑比解惑更多，就花了点儿时间，用Google爬了一些资料来研究，获得一些初步结果。

Small slow-growing pine of western United States similar to the bristlecone pine; chocolate brown bark in plates and short needles in bunches of 5; crown conic but becoming rough and twisted; oldest plant in the world growing to 5000 years in cold semi-desert mountain tops.

美西部小型松树，类似狐尾松，生长缓慢；巧克力色鳞状树皮，五针一束短叶；圆锥树冠但坚硬和扭曲；五千年前已存在于半沙漠的山顶地区。

The chemical compositions ,fiber morphology and physical pulping characteristics of Broussonetia papyrifera bark produced in dry-hot valley of the Jinshajiang River were analyzed.

对金沙江干热河谷区构树韧皮纤维的化学组成、纤维形态和成浆物理性能进行了分析，结果表明：构树韧皮的木素含量低，纤维素含量较高，达43。

Xeuramericana cv.'Zhonglin46', Salix matsudana and Broussonetia papyrtfera, and analysis the bark inclusion of these 4 tree species.

结果表明，取食不同树种的桑天牛成虫在取食量、存活时间、产卵量和死亡雌虫体内遗卵量上有较大差异。

Result shows that the Apriona germari adult insect prefer to eat Broussonetia papyrfera and reject to eat other tree species which result in difference in natural life and fecundity. Total sugar and dissolvable protein content in the bark is not the cause of rejection. Difference of dissolvable sugar and amino acid may be the reason of preference while difference of dissolvable phenolics and tannin content may explain the rejection.

取食构树的桑天牛成虫取食量大，存活时间长，产卵量大，遗卵量少，其他3个树种则相反。4树种树皮内总糖和可溶性蛋白含量与桑天牛抗性无关，树皮内可溶性糖含量、总氨基酸和必需氨基酸含量对抗性有一定影响。4树种树皮内水溶性总酚含量和单宁含量差异对成虫取食有较大影响，酚类和单宁等次生物质对桑天牛成虫的忌避作用是导致抗性的主要原因。

Investigation of the Iron Ion Pre- mordant Process in the Dying of Natural Dyes;2. Study on cotton fabrics ecological dyeing process with cork tree bark based on loess mordant ;3. Cotton fabrics were dyed with natural carminic acid after the Ti ion pre- mordant treatment.

将钛离子前媒处理后的棉织物，采用天然染料胭脂虫酸进行染色，以棉织物的K/S、H*值进行表征，对媒染剂浓度、温度、时间3个因素进行了单因素工艺实验，得到了钛离子前媒处理的最佳工艺参数(媒染剂浓度9×10-3 mol/L，50℃，40 min)。

Any of various trees of the genus Carpinus, having smooth, grayish bark and hard, whitish wood.

角树一种角木属的树木，具有光滑的微灰色树皮和坚硬的白色木质层

His female bullfighter Lydia gradually Health love, but she was in a vegetative state after the Bulls Zhuangcheng away from her, just because Lydia's ex-boyfriend showed more affectionate than he is like love.

他对女斗牛士莉迪亚渐生爱意，却在她被公牛撞成植物人后离她而去，仅仅因为莉迪亚的前男友表现出好似比他更深情的爱。

I know of none which are not easy to answer, but what I am trying to do now is only by a series of hints to throw some light on the narrow path of legal doctrine, and upon two pitfalls which, as it seems to me, lie perilously near to it.

我不认为有什么难以回答的问题，但我现在要做的仅仅是通过一系列线索，来给法律理论的狭窄路径以及在我看来离它近得危险的两个陷阱提供一些启示。