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hindering相关的网络例句

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Pd(PPh3)4 was more reactive for boronic acids with sterically hindering F atom, and the coupling reactions gave good yields of 90% and 91% without any self-coupling by-product.

Pd(PPh3)4对于含有位阻F原子苯硼酸的偶联反应很具有活性,且没有自偶联产生,产率可达90%及91%。

Analyses the main problems on the development of Zhanjiang advantageous industries including: firstly, the agriculture infrastructure is still backward, not power enough to resist the nature disaster; secondly, the agricultural product processing and circulation is still lag behind the situation of the growing economy; thirdly, the agriculture mechanism is low; fourthly, inefficient planting industry; fifthly, it hasn't realized the cross-industry and cross-regional economic recycling; sixthly, some of the aquatic products enterprises haven't got used to the requirements after we joined the WTO; seventhly, the eucalyptus planting plans are not strict, occupied too much area with inflexible management; eighthly, the bottleneck problem of hindering the development of husbandry is accentuated.

在进一步探讨研究的基础上,提出了湛江农业优势产业发展存在的主要问题,包括有(1)农业基础设施落后,抵御自然灾害的能力相对较弱;(2)农产品加工与流通仍滞后,落后于经济发展的形势;(3)农业机械化程度低;(4)种植业生产水平不高;(5)还未能实现跨产业跨区域的循环经济;(6)一些水产品出口企业不适应加入WTO后的形势要求;(7)桉树种植规划性不强、种植面积大,管理不科学;(8)制约畜牧业发展的瓶颈问题突显等。

The cause of hindering the gynospore formation was short of boronin chestnut orchard,which led to the poor pollination and a decrease ofendogenous GA1/3, iPAs level and an increase of endogenous ABA level in ovary,which restrained the mother cell division of gynospore.The low level ofendogenous GA1/3,iPAs contents and the increase of endogenous ABA contentcaused a serious lack of reducing sugar,starch,protein and potassium in ovary,which led to a cease of young embryo development.

其中,大孢子形成过程的停滞是由于栗园B素缺乏,致使授粉不良和子房内源GA1/3、iPAS等含量下降,ABA含量上升,从而抑制大孢子母细胞分裂;幼胚发育停滞则是由于子房内源GA1/3、iPAS等生长类激素的上升启动受阻,继续处于低水平,ABA上升,使子房中还原糖、淀粉、蛋白质和K素积累受阻,造成营养严重缺乏。

Correlation coefficient: 0.9962 . Positively charged'free'complex ions should be readily quenched by 〓, but when it is bound to DNA, it can be protected from the quencher because the highly negatively charged 〓 would be repelled by the negative DNA phosphated backbone, hindering quenching of the emission of the bound complex.

从理论上讲,带正电的配合物的阳离子应该可以被大阴离子淬灭,但是在DNA存在下,金属配合物插入到DNA的碱基对中,而〓被带负电荷的DNA磷酸骨架强烈排斥,从而避免了〓的淬灭,因此大的Stern-Volmer曲线斜率相应于对配合物较弱的保护形式。D。

However, the reaction speed decreased and more solid green product isolated due to the sterically hindering of ester group.

只是由于酯基的空间位阻效应而使反应速度变慢,析出的固体绿色化合物更多。

The results show that the water glass has a good selective depression for titanaugite in a weakly acidic medium with pH of 5.5-7.0, which is attributed to the strong action intensity between the water glass and titanaugite, hindering the adsorption of sodium oleate on the surface of titanaugite.

结果表明:在pH=5.5~7.0的弱酸性环境下,水玻璃对钛铁矿与钛辉石的抑制表现出良好的选择性,这是因为水玻璃与钦辉石间的强烈作用阻碍油酸钠在钛辉石表面的吸附,起到抑制作用。

The world is stifled by a thick and vitiated atmosphere - an undignified materialism which weights on the mind and heart hindering the work of governments and individuals alike.

老大的欧罗巴在重浊与腐败的气氛中昏迷不醒。鄙俗的物质主义镇压着思想,阻挠着政府与个人的行动。社会在乖巧卑下的自私自利中窒息以死。

Alcohol has many side effects including altering your perceptions, dulling your senses, hindering coordination, and blocking memory functions.

饮酒有许多副作用,包括改变你的看法,消光你的感官,阻碍了协调,并阻止记忆功能。

But we must intensify our educational work among them and prevent them from entrenching themselves in power and hindering land reform.

但要加紧对于他们的教育,防止他们把持权力,妨碍土地改革。

But America and the EU argue that by hindering their export, China is unfairly favouring domestic industries.

但是美国和欧盟认为中国在以干涉出口的方式支持本国企业。

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Meanwhile, Vick is speaking out for the first time today after being charged.

与此同时,维克在受到指控至今第一次发表言论。

In general 250 kg per mu, high-yielding up to 300 kg.

一般亩产250公斤,高产可达300公斤以上。

He was paroled last week.

上星期他被假释。