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面积之和
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  area sum
     and also shows that the geometric meaning of integral is the area sum of infinite differential curve trapezoid.
     阐明了积分等于原函数增量以及连续与可原、连续与积分的关系 ,说明了积分的几何意义是无限个微分曲边梯形面积之和 .
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  “面积之和”译为未确定词的双语例句
     the total area of grids where the value of SDI is4and5is6406km 2 ,59.86%of the total area.
     4、5级网格面积之和为6406km2,达到流域总面积的59.86%。
短句来源
     RESULTS:Altogether 6 peaks were marked out,the sum total of the average peak area of which made up(75.4±13.7)% of the total.
     结果:共标出6个特征峰,其平均峰面积之 和为总峰面积的(75.4±13.7)%。
短句来源
     Result: It was proposed that the area ratio of peak 5 to 6 (characteristic Ⅰ ) and the area ratio of peak 5 and 6 to the amount peak areas (characteristic Ⅱ ) are the identification characteristics for different seed sources of Magnolia officinalis.
     结果:对厚朴药材指纹图谱中的占总面积1%以上的6个峰进行了比较,提取出峰5与峰6的峰面积比值(特征Ⅰ)、峰5和峰6的峰面积之和占总峰面积的比值(特征Ⅱ)作为种源鉴别特征。
     Re-sults Isolation of silybin A and silybin B from silybin was obtained. The content of silybin was an-alyzed by the sum peak area of silybin A and silybin B. The standard curve for silybin was linearin the range of 5~100μg/ml. Regression equation was Y= 105412X + 28170 (r=0.9996).
     结果水飞蓟宾的两个非对映异构体水飞蓟宾A和水飞蓟宾B得到较好分离,以其两者峰面积之和计,水飞蓟宾的浓度在5~100μg/ml范围内,与峰面积呈良好线性关系,回归方程为:Y=105412X+28170(r=0.9996);
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     Both the total chromatographic peaks area of the related substance and the chromatographic peak area of betahistine hydrochloride were linear with the content of betahistine hydrochloride, the correlation coefficient was 0.9991, 0.9997 respectively.
     盐酸倍他司汀样品溶液中有关物质的色谱峰面积之和及2%盐酸倍他司汀线性对照溶液中主成分的色谱峰面积均与盐酸倍他司汀的浓度线性相关,相关系数分别为0.9991、0.9997。
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  相似匹配句对
     S_(ij)=area;
     Sij———面积;
短句来源
     Area Calculation for Binary Image with Non-square Pixels
     非正方形像素二值图形的面积计算
短句来源
     FERMAT AREA
     费尔马面积
短句来源
     Its restenosis degree of the carotid and the sum of the tunica inatma and the tunica media decreased.
     管腔的狭窄程度、内膜与中膜面积明显降低。
短句来源
     Study of the Manufacturing Technology and its Characterization for Large Area ACPDP Protection Film
     大面积ACPDP保护膜的制备及其特性研究
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  area sum
The lowering of ratio between maximum time to reach maximum fluorescence, Fm (Tmax) and Area (sum of Fm-Ft for t = 0 to t = Tmax) caused by GA3 was probably due to the increase of Area rather than to changes in Tmax.
      
Consequently, the height of the this square would be equal to the square-root of this block area sum.
      
Kaplan-Meier survival plot for CV death using the Q-wave area sum score.
      
This explains why the numbers of applications per decision area sum up to more than the number of papers surveyed.
      


In this treatise, an attempt is made with the application of the principles in projcctive geometry to solve such a problem as: how to determine a cut section on prism or cylinder, when its shape and area are given. The whole discussion is divided into seven sections: §1. Introduction; §2. Fundamental theory; §3. Right prism; §4. Oblique prism; §5. Right cylinder; §6. Obligue cylinder; §7. The terminative words. In §2. a brief description of the theory of perspective affinity correspondance and affinity correspondance...

In this treatise, an attempt is made with the application of the principles in projcctive geometry to solve such a problem as: how to determine a cut section on prism or cylinder, when its shape and area are given. The whole discussion is divided into seven sections: §1. Introduction; §2. Fundamental theory; §3. Right prism; §4. Oblique prism; §5. Right cylinder; §6. Obligue cylinder; §7. The terminative words. In §2. a brief description of the theory of perspective affinity correspondance and affinity correspondance is given, and the application of its theory on the determination of cut section of prism and cylinder is explained, §3. and §4, deal chiefly with the problems of triangular prism, and §6. only takes the circular base of the oblique cylinder, as an example for discussion. Finally, §7. refers to some problems which are not yet solved, and certain preliminary directions towards their eventual solution are pointed out as a basis for. The content of this treatise as explained and illustrated must be considered merely an elementary work an analysis of such a topic and any criticism or correction will be sincerely welcome.

本文应用射影几何中透视仿射对应的理论,解决如何在已知柱面中作出指定面积和指定形状的截口。全文共分七节,§1.前言,§2.基本理论,§3.直棱柱,§4.斜棱柱,§5.正圆柱,§6.斜圆柱,§7.结束语。在§2中简单叙述了透视仿射对应和仿射对应的理论,并指明如何应用在柱面的截断上。§3、§4重点讨论了三棱柱。§6也仅以柱底是圆的斜圆柱作例加以讨论。§7中简述了本文尚存在的问题,和继续探讨的方向。限于作者水平,本文只能是初步讨论,在许多问题的解决上,还不够完善。愿请教于大家的批评、意见和指示。

The Delphacodes striatella F., is widely distributed in Soochow, Wusih, Changchowof the Taihu Lake rice region in Kiangsu. It is one of the worst pests of our rice crop.The crops from the double cropping early rice and single cropping middle rice are injuredeven more severely. By our observations, the host plant of this small brown planthopper is changedseasonally. The most common hosts are rice in summer or autumn and wheat, Alope-curus aequalis Sobol. in spring or winter. Supplementary hosts include barley,...

The Delphacodes striatella F., is widely distributed in Soochow, Wusih, Changchowof the Taihu Lake rice region in Kiangsu. It is one of the worst pests of our rice crop.The crops from the double cropping early rice and single cropping middle rice are injuredeven more severely. By our observations, the host plant of this small brown planthopper is changedseasonally. The most common hosts are rice in summer or autumn and wheat, Alope-curus aequalis Sobol. in spring or winter. Supplementary hosts include barley, Leersiajaponica Makino, Zoysia japonica Steud., etc. According to the degree of embryonic development the growth of the egg is dis-tinguished in six stages, such as: Blastoderm, Germ band, Yellow spot, Blastokinesis,Eye spot, Accessory-podite and Hatching. The development of nymph goes through about five instars, it becomes adult afterthe fifth moult. The period of each stage is limited by temperature. At 25--26℃, theegg stage is about eight days, the nymph stage is about sixteen days, the adult is aboutfourteen days, the adult is about seven days. The sexual muturation period of the Brachypterous type is 1--2 days earlier than theLongipennate. The female copulates with the male immediately. The eggs are depositedinto the leaf sheath or beside the leaf mid-rib. The egg streak consists of double rowof eggs. Delphacodes striatella F. produces six generations per year. The first generation isfrom late April to early July. The second generation is from early June to early July.The third generation is from early July to August. The fourth generation is from earlyAugust to middle September. The fifth generation is from early September to middleOctober. The nymph of the sixth generation hatches in early October. During the3rd and 4th instars it hibernates on wheat, alfalfa or weeds. The activity of hymenpterous parasites, nematodes and spider in June and July sup-presses the multiplication of the small brown planthopper. The difference of the popula-tion in some regions or in the field is closely related to the nutrition of the host and themicroclimate. The results of laboratory and field tests indicated that: spraying 6% γ wettableB.H.C. (1:200), 46.6& Folidol (1:3000) and 15% wettable Malathion (1:1500) at100 kg of the solutions per mou, gave very successful control.

1.灰稻虱是苏南稻区每年普遍发生为害和暴发年猖獗成灾的主要害虫。由于其早在6—7月间已进入全年发生盛期,故对双季早稻和单季中稻的为害特别严重。 2.该虫的主要寄主 夏秋季为水稻Oryza sativa L.,冬春季为小麦Triticum aestivum L.、看麦娘Alopecurus aequalis Sobol.。其它寄主有稗Echinochloa crus-galli Beauv.、李氏游草Leersia japonicaMakino等十种。 3.灰稻虱在苏南稻区一年发生六代。发生时期:第一代为4月下旬—6月上旬,第二代为6月上旬—7月上旬,第三代为7月上旬—8月上旬,第四代为8月上旬—9月中旬,第五代为9月上旬—10月中旬,第六代若虫在10月上、中旬孵化,11月上、中旬以3—4龄若虫于麦田、紫云英田或沟埂杂草处越冬,翌年3月中旬—4月中旬化为成虫。 4.灰稻虱在水稻田内的消长峰态可以分为“双峰”和“单峰”两种。高峰的出现期一般总是在水稻营养状况良好的分蘖盛期和孕穗期。 5.早夏发生量的多寡,除与水稻早期栽培的面积和营养状况密切有关外,还与冬前虫口基数和1—3月间的气温等综合因子有关。6—7月间,寄生...

1.灰稻虱是苏南稻区每年普遍发生为害和暴发年猖獗成灾的主要害虫。由于其早在6—7月间已进入全年发生盛期,故对双季早稻和单季中稻的为害特别严重。 2.该虫的主要寄主 夏秋季为水稻Oryza sativa L.,冬春季为小麦Triticum aestivum L.、看麦娘Alopecurus aequalis Sobol.。其它寄主有稗Echinochloa crus-galli Beauv.、李氏游草Leersia japonicaMakino等十种。 3.灰稻虱在苏南稻区一年发生六代。发生时期:第一代为4月下旬—6月上旬,第二代为6月上旬—7月上旬,第三代为7月上旬—8月上旬,第四代为8月上旬—9月中旬,第五代为9月上旬—10月中旬,第六代若虫在10月上、中旬孵化,11月上、中旬以3—4龄若虫于麦田、紫云英田或沟埂杂草处越冬,翌年3月中旬—4月中旬化为成虫。 4.灰稻虱在水稻田内的消长峰态可以分为“双峰”和“单峰”两种。高峰的出现期一般总是在水稻营养状况良好的分蘖盛期和孕穗期。 5.早夏发生量的多寡,除与水稻早期栽培的面积和营养状况密切有关外,还与冬前虫口基数和1—3月间的气温等综合因子有关。6—7月间,寄生蜂、线虫和蜘蛛类等天敌的活动,对灰稻虱的增殖也有一定的抑制作用。 6.个体发育中,卵期还可凭胚胎发育的特征划分为胚盘、胚带、黄斑、反转、眼点、附肢形成和孵化等七期。各虫?

~~

冬小麦整个生长期中,净光合率数值是变动的,而各个处理间的平均净光合率变化较小。净光合率的变化,与气象因素密切相关;改善农业技术措施的主要影响在于改变叶面积,对净光合率的直接影响较小。小麦产量高低,主要决定于叶面积和光合势大小;但最大叶面系数不能超过5。

 
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