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Promoted by metal dysprosium, aldehydes and ketones could react smoothly with propargyl bromide to afford the corresponding homopropargylic alcohol s in good to excellent yields, and no allenic alcohols were found.

在金属镝的促进下,醛、酮可与炔丙基溴反应,高选择性高产率地得到相应的高炔丙醇,没有发现连二烯醇的存在。

In previous results, Alkyl substituted propargylic dithioacetals treating with butyl lithium then were allowed to react with carbonyl compounds to form homopropargylic alcohol with high yields and highly regioselective.

在本实验室先前的研究中发现,烷基取代炔丙基硫缩酮与正丁基锂进行开环反应后,若是与羰基化合物反应,能够以高产率、具位向选择性的生成高炔丙基醇。

A strain XZ3, of high protopectinase activity, was screened out from 24 samples originated differently.

从24种不同来源的样品中筛选得到一株编号为XZ3的原果胶酶高产菌株,其酶活达126.4U/ml。

An amount of psychrophilic bacteria was isolated from deep sea sediment collected from Prydz Bay, Antarctica. The strain AC167, which showed high cold-active chitinase activity, was screened from these bacteria. It was identified as a Pseudomonas species by 16S rDNA sequence comparison.

从南极普里兹湾深海底泥样品中分离得到一批嗜冷细菌,对这些嗜冷细菌进行了产几丁质酶菌株的筛选,对其中一株具有较高产酶活性的菌株AC167所分泌的几丁质酶进行了性质分析,并通过16S rDNA序列分析进行了菌株的分子鉴定。

Meanwhile, I undertook the test of appling Nisin in pteridium aquilinum can's processing and storage.

在Nisin高产菌株选育的同时,开创了Nisin应用于蕨菜罐头的加工贮藏研究。

The total yield and ee value of the enantiomer were 12% and 98.7% respectively. The total yield of the racemic one was 17%, 2.5 fold more than the previously publishable route.

整条路线具有高产率高ee值的特点,将会成为合成此类直型二氢苯并呋喃香豆素的流行方法。

Wheat leaf rust caused by Puccinia triticina is one of important diseases of wheat, which seriously reduced the yield of wheat.Resistant cultivars are the most economic, safety and effective ways for minimizing the losses caused by the disease.

由小麦叶锈菌引起的小麦锈病是影响世界小麦稳产高产的重要病害之一,利用抗病品种是防治该病害最经济、安全、有效的方法。

By analysis,we identified this Rhodothece glutinis is a kind of high carotenoids producer,and the main pigment is astaxanthin .

研究从海泥中分离出的一株红酵母,经分析确定其为一株天然类胡萝卜素高产菌,其主要的色素成分为虾青素。

New planted ramie often have defects of fewer efficient plant numbers, many of high-branches, difficult to peel bast, low yield, bad fiber quality and so on. Aiming at all these shortages, the cuttage breeding technology of fine varieties and high-yield and good-quality cultivating method, breeding Cutting seedling with several low-branches, planting deeply appropriately, ridging to foster rootstocks when intertilling, was brought forward.

针对苎麻新麻有效株少、高位分枝多、韧皮剥制难、原麻产量低、纤维品质差等问题,提出了培育携带多个低位分枝的扦插苗,麻苗移栽时适当深植,辅以新麻中耕时起垄培蔸的苎麻良种扦插繁殖新技术与新麻高产优质栽培方法。

It is the scope of this ongoing cooperative project between Agromac Sdn Bhd, Malaysia, Saeng Sawan Plantations, Thailand and PPI Singapore to develop guidelines for high sustainable palm oil yields under agroclimatic conditions in Southern Thailand.

马来西亚的Agromac Sdn Bhd,泰国 Saeng Sawan种植园和新加坡PPI之间正在进行的合作前景,将会使泰国南部农业气候下的油棕榈持续高产成为可能。

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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。