过量存在
- 与 过量存在 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Moreover, excessive fertilizer applying, unreasonable using structure and improper method, these problems catholically existed in kiwifruit production.
四川盆周山区猕猴桃耕地质量总体较差,土壤有效磷、速效钾、有效硼、有效钼等土壤养分缺乏,猕猴桃生产中普遍存在化肥施用过量、用肥结构不合理、施肥方法不当等问题。
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General quality of soil is poor, lacking of soil nutrients like available phosphorus, quick-acting potassium, available boron and molybdenum. Moreover, excessive fertilizer applying, unreasonable using structure and improper method, these problems catholically existed in kiwifruit production.
四川盆周山区猕猴桃耕地质量总体较差,土壤有效磷、速效钾、有效硼、有效钼等土壤养分缺乏,猕猴桃生产中普遍存在化肥施用过量、用肥结构不合理、施肥方法不当等问题。
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Large amount of CDH and cellobiose will produce much HO superior to physiological needs, which may result in enzyme inactivation.
当一定量的CDH在过量纤维二糖存在下将生成超过生理需要的自由基而导致酶的失活。
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The results of the reaction show that better regioselectivity is obtained when Cd2+ is used as additive and give stereoselective product when cinchonine is used as chiral additive.Keywords: NaBH4, Regioselective,Stereoselective,Benzoyl acetone,Metal ion
结果发现,不同的金属离子添加剂使反应出现不同的化学选择性,而Cd2+离子对苯甲酰丙酮的还原具有较好的化学选择性,同时在辛可宁存在条件下得到了对映体过量的产物。
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The effects of excess air coefficient and cylinder pressure on these spectra are also studied. The experimental resultS show that the three different combustion phases in a gasoline engine have different combustion characteristic spectra: a large number of atoms, molecules, ions and radicals which are in their excited states are existing during the ignition process, with the development of the combustion, the spectra intensities of CH, C2 radicals increase rapidly.
实验结果表明,汽油机三个不同的燃烧阶段具有不同的燃烧光谱特征:着火过程中,存在着大量的处于激发态的分子、原子、离子、自由基等活化中心的束缚态光谱,随着燃烧发展,CH、C2自由基的光谱强度明显加强;当减小过量空气系数时,光谱强度变弱并且着火延迟期增长;自由基特征光谱的光强变化曲线可以反映它们在燃烧过程中的浓度变化。
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Both the protection and deprotective group methods for the amino-group on side chain of a new N-pivot lariat crown ether were studied comparatively.
研究了一种新的氮支套素冠醚侧链上氨基的保护和脱保护基方法,结果表明,由过量乙二胺与对甲苯磺酰氯反应得到的单保护乙二胺(N-对甲苯磺酰基乙二胺4a),经N-烷基化环化反应,然后在氢化铝锂存在下脱除保护基,即可制得最佳产率的N-(2-氨基已基)单氮杂-12-冠-4(1)。
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The proportion of organic fertilizer in total nutrient inputs had being decreased with time, 2 the recycling ratio of nutrient of organic fertilizer was low, the regional application of organic fertilizer was imbalanced, and 3 over-application of organic fertilizer lead to nitrate pollution of groundwater and heavy metal accumulation in soil.
我国有机肥料利用中存在的主要问题是:①有机肥施用面积逐年减少,肥料结构中有机肥的比重逐年降低,但近年来趋于平稳;②有机肥养分再循环率不高,区域利用状况不平衡;③有机肥过量施用带来的一些环境问题如地下水资源污染、土壤重金属累积等。
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In order to strengthen the management of medicine-chest in ward s, and guarantee that the medicine can be used and maintained correctly, the management of some ward medicine-chests in a hospital were investigated.
为了进一步加强医院病区小药柜药品管理,确保病区小药柜药品能够正确使用、保管,特对某医院病区小药柜药品管理情况进行了调查,发现病区小药柜存在药品的有效期管理不落实、精神药品的管理不规范、未按要求贮存保养药品、注射剂批号及包装混杂、药品储存过量和积压等问题。
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First, our studies provide convincing evidence that the genome is pervasively transcribed, such that the majority of its bases can be found in primary transcripts, including non-protein-coding transcripts, and those that extensively overlap one another.
首先,我们的研究提供了可靠的证据表明基因组是普遍被转录的,像基因组里面的大多数剪辑都可以在初级转录产物中存在,其中包括非编码蛋白的转录产物,和那些过量表达的冗余禅悟。
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The optimum conditions were reaction temperature 120°C, reaction time 20h, mole ratio of 5-chloromethyl-2-oxazolidinone and sodium phenolate 1:1. 3,5-Dimethylphenol and epichlorohydrin in sodium hydroxide were condensated to give l,2-epoxy-3-phenoxy propane, then the reation of l,2-epoxy-3-phenoxypropane and the carbamate afforded oxazolidinone in the yields of 69.0%~76.0%. The side reaction had been avoided effectively by the uses of the excessive epichlorohydrin and mixed catalysts.
用3,5-二甲基苯酚和环氧氯丙烷在氢氧化钠存在下缩合生成苯氧基环氧丙烷,然后和氨基甲酸酯反应生成噁唑烷酮,采用过量环氧氯丙烷和使用混合催化剂,有效的避免了副反应的发生,提高了噁唑烷酮的产率,产率69.0%~76.0%。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?