查询词典 under weight
- 与 under weight 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
In order to evaluate the effects of important ecophysiolorical factors, such as light intensity, temperature, relative humidity, leaf structure(SLW, specific leaf weight; and SLA, specific leaf area) etc., on the net photosynthetic rate of Gordonia under natural conditions, the diurual and seasonal variations in Pn are measured with the improved dry-weight method.
为了探讨在自然条件下重要生理生态因子,如光照强度、温度、相对湿度、叶结构(SLW,单位叶面积干重;SLA,单位叶面积率)等对四川大头茶净光合作用的影响,本文采用改良半叶法测定四川大头茶净光合作用日变化和年变化,并结合遮阴实验详细研究了生理生态因子与Pn的关系。
-
Photosynthetic rate and water utilization efficiency were increased, but malonic dialdehyde content and membrane permeability were decreased with polyamine treatment under hypoxia stress. At the same time, the fresh weight and dry weight was increased.
结果表明,外源多胺能显著提高低氧胁迫下黄瓜幼苗叶片的净光合速率和水分利用率,降低叶片中丙二醛含量和质膜透性,使幼苗鲜重和干重明显增加。
-
By use of titration analysis, the thesis investigated various factors such as isocyanate, PE molecular weight, reacting substance molecular ratio, reacting temperature and time etc. influencing upon prepolymerization step. It was found that 2, 4-tolulene diisocyanate and 4, 4'diphenylmethane diisocyanate is more rapidly reacted with PE600 than HDI. With PE molecular weight increasing, the reacting temperature or time should be raised or extended relevantly. Thus PE2000+2HDI pre-polymerization should be better carried out under some catalyst, for example, Triethylene diamine , Dibutyltin dilaurate and Tin octoate were used.
首先采用滴定分析方法对WRPU预聚反应的影响因素进行了研究:芳香族二异氰酸酯TDI、MDI比脂肪族二异氰酸酯HDI反应活性高,其中TDI在反应初始阶段的反应速率比MDI快,不过随着反应的进行,MDI比TDI反应速率加快,这主要是因为TDI分子中的两个-NCO反应活性差异大所致;二元醇分子量越大,反应速度越慢;聚醚二元醇比聚酯二元醇的反应速度快;当分子量超过2000的二元醇与HDI进行预聚反应时,需借助适当的催化剂来加快反应速度,从而使预聚反应能够顺利进行,分别选择DABCO、TOA和DBDTL三种催化剂进行催化反应,发现不同的催化剂,其催化效果相差较大。
-
Compared to the control, the increment in membrane permeability, MDA and Pro contents were smaller, and the reducement in activities of SOD and POD, contents in soluble protein, dry weight of aboveground, dry weight of underground, plant height and stem diameter were smaller in leaves of pepper under low temperature and poor light stress with PEG seed-soaking. These results suggested that PEG seed-soaking could increase the resistance ability to low temperature and poor light stress of pepper seedlings.
PEG浸种处理可使辣椒幼苗地上部干质量、地下部干质量、株高、茎粗和叶片SOD、POD活性、可溶性蛋白含量的下降幅度均较低温弱光对照显著减缓,细胞膜透性、MDA与Pro含量的增加幅度均较低温弱光对照显著降低,表明PEG浸种处理能够提高辣椒幼苗对低温弱光的适应能力。
-
Chapter 2 discusses the function of optimum array based on the minimum meansquared error principle in CDMA system, the method of produce the reference signal, and proved whether the reference signal is the correspond PN code sequence or respread signal, the result of the array's weight converge can converge the same optimum weight under the condition that the PN sequence in a bit of data is long enough. In this chapter, we finally get the beam pattern and the correlate bit error rate after converge when several CDMA signal arrives in different direction.
本文的主要贡献及创新之处是:首次从理论上探讨了基于最小均方误差准则的最优天线阵在CDMA系统中的多址干扰抑制性能及其参考信号的产生方法,证明了采用有用信号相应的扩频码作为参考信号与采用将解扩信息与扩频码进行重扩频后的信号作为参考信号来调节自适应天线的权值均可使权值收敛于同一最优解。
-
By regression of experimental data, therules of the linkage between these factors, which will provide a theoretical basis for designing BBP with different scales.3 Using thermal analysis technology and dynamic thermogravimetry, the paper studies combustion kinetic characteristics of 3 types of agricultural crops at different rate of temperature rise, and thus, achieved dynamic parameters of these fuels at different rate of temperature, established dynamic model of straw combustion, which reflects the dynamic process in the fast combustion area.4 Characteristics of straw briquette combustion was experimented, focusing on the impact of straw type, temperature, air supply, and density, diameter, and weight of briquette on the combustion speed, and the following conclusions were drawn:(1) combustion of straw briquette fuel is static permeation diffusion combustion;(2) temperature has a larger impact on the speed of straw briquette combustion than air supply; the higher the combustion temperature is, the faster volatilizable component separates out, and the less steady the combustion is;(3) density of briquette fuel has impact on the speed of volatilizable component separation and therefore the combustion speed;(4) increase of diameter and weight of briquette fuel increases the average combustion speed in the initial stage, and that in the later stages is comparatively steady;(5) the proportion of volatilizable component in straw briquette fuel is high, therefore, the temperature control during combustion under the rational ventilation condition is essential to ensure its safe combustion.5 Using the above-mentioned results of experiments and theoretical analysis, and based on thought of hydraulic driven and bi-direction compression, the hydraulic system and compression parts of the HBP BBP are re-designed in terms of industrialization.
利用热分析技术,采用动态热重实验法,对我国的三大农作物秸秆在不同升温速率下的燃烧动力学特性进行了较系统的研究。得到了各原料在不同升温速率下的动力学参数;建立了秸秆燃烧的动力学模型,该模型反映了秸秆迅速燃烧区的动力学过程。 4 对秸秆成型燃料的燃烧特性进行了试验研究。着重研究了秸秆河南农业大学博士学位论文巫的种类、温度、空气供给量、成型燃料密度、直径、质量对成型燃料燃烧速度的影响并得出如下主要结论:①秸秆成型燃料的燃烧方式属于静态渗透式扩散燃烧。②秸秆成型燃料燃烧速度受温度的影响大于通风量燃烧速度的影响:燃烧温度越高,挥发分析出速度越快,燃烧平稳性愈差。③成型燃料密度影响成型燃料挥发分的析出速度,影响燃烧速度。④成型燃料直径和质量的增加,使得燃烧初期的平均燃烧速度增大,中后期的平均燃烧速度相对平稳。⑤秸秆成型燃料含挥发分比例高,因此合理配风下的控温燃烧是保证其完全燃烧的关键。 5运用已取得的试验和理论分析结果,以液压驱动、双向成型为基础,从产业化的角度对HBP型成型机进行了液压系统和成型部件的改进设计;同时采用了二级预压机构,使该成型机的生产率达到 500kg.hd;单位能耗 60kwh。上'左右,磨损件修复周期 300小时左右,基本解决了影响生物质固化技术在国内推广的技术难题。
-
Result Under the same growing conditions and cultivations, comparing with control group, both the fresh weight and the total sugar content of chicory root in group of P-applied and K-applied had significant differences (P.05). Considering the economic returns, the group of P-applied was better than the control group and the group of P-applied, it had the largest fresh weight, fresh yield of chicory root and the total sugar content.
结果]结果表明:在相同的生长条件和栽培方式下,相比对照组,每公项追加磷肥120kg与每公顷追加钾肥100kg均有利于菊苣根重以及总糖含量的增加,综合考虑经济效益,追加钾肥明显优于对照组和追加磷肥组,不仅鲜根重增加、含糖量较高,其鲜草产量也最大。
-
In percentage of the tiller ear number/the tiller number, the increased ear number per unit area, the like grain number per ear and weight of 1, 000 grains; a bit shorter plants; almost the same base internode length, weight per unit internode length, internode length under ear, LAI values in middle and later stages, process of dry matter accumulation from straight growth onwards, dry matter accumulation amount from earing to maturity, length of flag leaf, 2〓 leaf, 3〓 leaf and 4〓 leaf from top and total area of these leaves, leaf thickness, mean canopy leaf tilt angle, light extinction coefficient , ratio of light penetration in the upper, middle and lower parts of the wheat canopy, and fair plant type; almost the same senescence process of flag leaf; and slightly increased root amount in 0-120cm soil layer and reduced root amount in 90-120cm soil layer; the optimized irrigation-optimized fertilization with crop residues improved the growth and development of the winter-wheat.
秸秆还田有利于改善冬小麦的生育状况。
-
Result junior high school male, schoolgirl overweights occurence rate is respectively 10.03%, 9.55%, fat occurence rate is respectively 5.32%, 3.04%, BMI of male, schoolgirl evaluates junior high school of Fen in relief city overweight result and standard of height standard weight are uniform, evaluate fat result under law of height standard weight.
结果初中男、女学生超重发生率分别为10.03%,9.55%,肥胖发生率分别为5.32%,3.04%,汾阳市初中男、女学生BMI评价超重结果和身高标准体重法一致,评价肥胖结果低于身高标准体重法。
-
Under the condition of retaining the same machine weight of wheel crane, reducing the weight of telescopic hoist boom is one of effective ways to increase hoisting performance.
轮式起重机在产品自身重量相同的情况下,减轻伸缩起重臂的重量是提高起重性能参数最有效的方法之一。
- 相关中文对照歌词
- Whippin
- Weight Of Living, Pt. II
- Carry That Weight
- The Weight Of Love
- Big Fat
- Going Under
- The Weight Of The World
- Weight Of My Tears
- The Weight Of Love
- Name Hold Weight
- 推荐网络例句
-
He studied their excrement for evidence of livestock hair.
他为家畜毛的证据研究他们的粪便。
-
Loneliness is not grounds for deportation, deportation of the people are not all lonely people.
寂寞也不是放逐的理由,放逐的人也并不都是孤独的人。
-
The molecular basis for the virulence of this virus is still poorly understood. We characterized two H5N1 subtype viruses, A/mallard/Huadong/Y/2003 is nonpathogenic to mallard whereas A/mallard/Huadong/S/2005 is highly pathogenic to mallard.
我们对从野鸭分离到的H5N1 亚型禽流感病毒的生物学特性进行鉴定,其中A/mallard/Huadong/Y/2003是对麻鸭无致病性病毒,而 A/mallard/Huadong/S/2005是对麻鸭高致病性病毒。