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In the riverine wetland, there are 96 species of vascular plants belonging to 87 genera and 41 family and their biodiversity indexes lie between 0.099-1.191, plant community is of simple structure and the advantaged species is planted outstandingly, mostly single excellent community. There are also certain amounts of wetland birds, a large percentage of which are Ardeidae, Gallinula chloropus and Tachybaptus ruficollis .

拟建的化工园区沿江湿地共有维管植物41科87属96种,多样性指数介于0.099-1.191之间,植物群落的结构比较简单,优势种突出,大多为单优势群落;湿地鸟类种类比较丰富,以鹭类、黑水鸡、小鸊鷉所占比例较大:沿江圩田粮棉区为高产稳产地区,粮食作物以水稻、小麦为主。

However, nowadays, our silk artifactitious technology is dropping behind Italy, France and so on.

历史上,桑树各种载培方法的成功,特别是嫁接桑的出现,促进了桑蚕业的优质高产

It not only can prepare substituted arylamine sulfoacid with high-quality and high-yield, but also can easily control reaction temp., and reduce reaction temp..

所说的方法不仅能高质量、高产率地制备取代芳胺磺酸,而且由于在有机溶剂中进行反应,可非常容易地控制反应温度,并可降低反应温度。

Growth characteristics, stem-leaf ratio, biomass, crude protein and grain yield ten varieties of Avena sativa were studied in Datong County, Qinghai Province.

在青海大通县对10种高产燕麦Avena sativa品种的物候特性、茎叶比、牧草产量和粗蛋白含量以及种子产量进行了比较研究。

Uses method which the field investigation sample and the indoor analysis unify, 2007-2008 years live the unicast awnless brome lawn and the awnless brome and the alfalfa interlacing in the Inner Mongolian nationality university agriculture school test farm take 2 years mix broadcast the lawn and the colleague mix broadcast the lawn as the objects of study, have studied under the different sowing seeds way the forage grass to the soil physics and chemistry nature influence, finally indicated:the change tendency which under the different sowing seeds way increases the soil bulk specific gravity overall along with the soil layer depth to present after reduces first increases, is the 10-20cm soil layer is lowest; Looking from the 0-40cm soil layer's mean value, the unicast awnless brome lawn soil bulk specific gravity is smallest, the colleague mixes broadcasts the lawn soil bulk specific gravity to be biggest.

科尔沁草原是典型的农牧交错地区,长期以来,由于不合理利用草地资源造成该区生态环境严重恶化,农牧业生产受到严重影响[1]。建立高产优质的人工草地是解决我国高寒地区草畜供求季节不平衡的矛盾,促进草地畜牧业持续发展的关键措施之一[ 2]。无芒雀麦和紫花苜蓿都是营养价值高、适口性好、抗寒抗旱能力强的多年生牧草。将这两种牧草混播不仅能提高牧草产量和品质,延长草地使用年限,还能改善牧草的营养,提高牧草的适口性,有利于调制和青贮[3]。

And 16.3% respectively.Compared with direct-heating extraction,MAE may shorten extracting duration,reduce solvent consumption,and improve yield and purity of isoflavones from Belamcanda chinensis.

微波辅助提取与直接加热提取相比可缩短提取时间,降低溶剂消耗,提高产率和提高射干异黄酮的纯度。

The known titanoheterocyclic compound〓 was synthesized in high yield by a new route involving an oxidative addition reaction of "titanocene"with benzil, and its structure was first confirmed by a single crystal X-ray diffraction method.

首次由&二茂钛&与二苯乙二酮的氧化加成反应,高产率地合成了一个已知的高价钛杂环化合物〓,并首次用X-射线衍射法测得该化合物的单晶分子结构。

Quinone methides, generated in situ from the reaction of 4-hydroxycoumarin with benzaldehyde, formaldehyde and pentanal, underwent the Diels-Alder reaction with silyl enol ethers to give a series of 3,4-dihydro-2H,5H-pyrano[3,2-c][1]benzopyran derivatives in high yields.

通过4-羟基香豆素与苯甲醛、甲醛和戊醛缩合产生的quinone methide与烯醇硅醚的Diels-Alder反应,以较高产率合成了一系列含有硅氧基的3,4-二氢-2H,5H-吡喃并[3,2-c][1]苯并吡喃-5-酮衍生物。

The total synthesis of the title compound 10 was accomplished starting from 3,5-dimethoxybenzoic acid (1) and p-hydroxybenzaldehyde (6). In the process, esterification, reduction, bromination and Wittig-Homer reaction were performed.

以3,5-二甲氧基苯甲酸为起始原料,经过甲醇酯化、氢化铝锂还原、四溴化碳溴代和Wittig-Homer反应,高产率的合成了Wittig-Homer试剂(5)。

In this paper, an efficient and easy biological screening method based on the sensitivity to lovastatin of Neurospora crassa was built to deal with the mutant strain rudely by UV mutation. A high-level strain was screened in the shaking flask culture incorporating with TLC and HPLC. A comparison between this two methods also was originally discussed while identifying dyeing using bromophenol blue as the better treatment of TLC, and offering a kind of simple, practical, fast and economical determination qualitatively and quantitatively.

本文有鉴于此,通过紫外诱变处理,并基于粗糙脉孢酶对洛伐他汀的生物敏感性,对诱变菌株进行了初筛;同时,采用摇瓶培养,结合TLC和HPLC的分析方法,复筛出一株高产菌株;对复筛过程两种分析方法分别进行了初步探讨,比较其优劣,确定TLC法经溴酚兰显色剂显色处理为较佳方式;从而,建立了一套简单、实用、快速、经济且有效的洛伐他汀生产菌诱变筛选方法。

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And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47:5 法老对约瑟说,你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法,同时,采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。

Hey Big Raven, The individual lies dont matter anymore - its ALL a tissue of lies in support of...

嘿大乌鸦,个别谎言的事不要再-其所有的组织的谎言,在支持。