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good characters
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  优良性状
     In order to breed new forage crop variety of good characters combining Sorghum with Sudangrass, 9 interspecific hybrids were obtained via crossing between male-sterile line Sorghum 11A, 314A, 13A and black hull Sudangrass, white hull Sudangrass, brown hull Sudangrass respectively, and F2 and F3 were obtained via planting and selecting in filed.
     为培育结合双亲高粱—苏丹草优良性状的饲用作物新品种,利用雄不育系高粱11A、314A、13A分别与黑壳苏丹草、白壳苏丹草、棕壳苏丹草进行杂交获得了9个种间杂种F1代,通过田间种植、选择得到了F2和F3代。
短句来源
     On condition that don't make any genetic marks for receptor Saccharomyces cermisae D518, killer plasmid of donor strain-killer yeast 5045 was introduced into it by use of the cytoduction technique and one stable fusint in genetics KD102 which to contain the good characters of both parents was obtained.
     利用细胞质导入(Cytoduction)法中的核融合缺陷细胞融合技术,在对酿酒酵母(Saccharomyces cerevisiae)D518菌株不做任何遗传标记,将嗜杀酵母5045菌株的嗜杀质粒转移到受体菌D518中,获得了具有两亲株优良性状的融合子KD102菌株。
短句来源
     Basing on our early stage research work about collection and description of sugarcane germplasm (saccharum complex) and the aided project of Yunnan Natural Science Fund (2001 C0015Q), the wild species Erianthus fulvus, which has good characters, cold-resistant, drought-resistant, higher Brix and less chromosome number, was utilized for the first time through intergeneric hybridization with sugarcane cultivar (Saccharum officinarum).
     本研究在课题组考察采集和保育鉴定甘蔗野生种质资源的前期工作基础上,依托云南省自然科学基金资助项目(2001C0015Q),首次利用具有特异优良性状(抗旱、耐寒、锤度高、染色体数目少)的蔗茅(Erianthus fulvus)野生种与甘蔗栽培种或品种(系)进行属间远缘杂交,扩大甘蔗遗传多样性;
短句来源
     The segregation of the traits such as growth period duration, growth habit, plant height, shape of leaves, ear, grain, awn, anther, stigma etc, showed that more than 20 percent of plants maintained good characters of cultivar parent in F_2 generation, this is very useful for further, selection.
     杂种后代生育期、生长习性、株高、叶、穗、粒、芒、花药、柱头等性状的分离规律表明:F_2中保持栽培稻亲本优良性状的比率达20%以上,有利于选择;
短句来源
     But the success in inducing gynogenesis is only the first step to achieve breeding selection of good strain in silver carp, we must still solve the problems in reproducing offspring and keeping good characters of parents.
     但是雌核发育诱导成功只是完成了选育优良品系的第一步,还要解决繁殖后代和保持亲本的优良性状的问题。
短句来源
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  “good characters”译为未确定词的双语例句
     Some fairly good characters and simple recurrence formula of ∑nk=1k 2l and ∑nk=1k 2l+1 are biven in thio paper. .
     本文给出了关于∑nk=1k2l和∑nk=1k2l+1的较好的性质和简单的递推公式
短句来源
     It can be verified by experimental results that All Phase spectrum analysis has good characters which can reduce leakage and distinguish the spectrum of a small signal beside a big signal, and the reason of which is interpreted deeply.
     文中对经过全相位截断后的信号进行频谱分析,称为全相位频谱分析,实验证明,全相位频谱分析具有良好的频谱分析性能,可以明显减小泄漏,并且可以分析出来幅值很小的信号的谱线,本文还对全相位频谱分析泄漏小的原因进行了深入剖析。
短句来源
     V>0,this paper gives another class of biased estimate β~*_h=(X~TV~(-1)X+hI)~(-1)(X~TV~(-1)Y+β~*),where h>0 is a parameter and β~* is the generlized least squares estimate,We proved β~*_h was an admissible estimate with mang good characters.
     V>0下给出了有偏估计βh*=(XTV-1X+hI)-1(XTV-1Y+β*),其中h>0为参数,β*表示线性回归模型的广义最小二乘估计. 讨论了这种有偏估计的优良性质,并证明了其可容许性,推广了已有的有关结果.
短句来源
     β PbO 2/SnO 2/Ti electrode were introduced,and compared it with β PbO 2/Ti electrode. Many good characters of β PbO 2 modified electrode were also proved.
     进行了βPbO2/SnO2/Ti电极的研制及其性能的研究,与以前做的βPbO2/Ti进行比较,显示了βPbO2/SnO2/Ti修饰电极导电性能好并节省电能等方面的优越性
短句来源
     The rest lines,Mintang92-222,Mintang97-191 and Mintang97-193 have shown some good characters with strong stooling,more millable staks and high fiber,and could be improved to utilize as the special energy sugarcane.
     闽蔗92-222、闽蔗97-191、闽蔗97-193等远缘杂交后代品系具高分蘖率、有效茎数多、高纤维分等特点,可考虑作为能源专用蔗加以开发利用。
短句来源
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  相似匹配句对
     gene was good to improve quality characters.
     基因具有提高品质的功能。
短句来源
     Laser beam with good propagation and focus characters.
     激光束具有良好的传输和聚焦性能,可以长距离传输;
短句来源
     On the Characters of Transportation
     试论交通运输业的特点
短句来源
     On Functions of Good
     论善的功能
短句来源
     Good Night
     晚上好
短句来源
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  good characters
However, except for several hybrid protocols, most proposals were either based on contention mode or schedule mode and neither of the two modes has possessed the good characters of the other.
      
This system, it is argued, supports, though not always consistently, May's agenda of promoting good characters over bad, making the text more authentic, and helping German readers identify with the characters.
      
"Good" characters normally are described as having white skin and "evil" characters with black skin, but extremely rarely do characters have brown skin.
      
Favourable environmental conditions can promote seed and embryo development in genotypes with existing good characters.
      
of the plants, initially selected for phenotypically good Characters, were found to produce a good progeny (see table 2).3.The possibility of further improvement along this line by incorporating material from other sources will be tested next.
      
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In present study, agreat number of reniform embryoids were induced from the cotyledons of two strains of Dimocarpus longana Lour, the large-leaf sfrain "Dong-pi" and the small-leaf strain "Hung-he-zi". These embryoids have been grown into normal test-tube plant, which have survived in the soil.The MS medium with additional kinetin 1.0mg/L, 2-2-4-D 2.0mg/L, and 0.5% activated carbon showed a satisfactory result for the induction of callus from cotyledon. Calli differentiated into reniform embryoids when BA 0.5...

In present study, agreat number of reniform embryoids were induced from the cotyledons of two strains of Dimocarpus longana Lour, the large-leaf sfrain "Dong-pi" and the small-leaf strain "Hung-he-zi". These embryoids have been grown into normal test-tube plant, which have survived in the soil.The MS medium with additional kinetin 1.0mg/L, 2-2-4-D 2.0mg/L, and 0.5% activated carbon showed a satisfactory result for the induction of callus from cotyledon. Calli differentiated into reniform embryoids when BA 0.5 mg/L and NAA 0.lmg/L were added to the medium. Reniform embryoids could propagate themself in large quantities and could develop into normal plants when a lower level of hormone and additional essential organic matter were present in the medium. The results show that it is possible to use the generation of induced embryoids as a clone for the rapid propagation of longan stock with good characters and for the selection of desirable type in longan breeding.

本研究利用龙眼(Dimocarpus longana Lour)大叶系的“东壁”及小叶系的“红核子”的幼子叶,诱导出大量肾形胚。这些肾形胚发育成正常试管苗,试管苗已经土培成活。在愈伤组织诱导中,以MS为基本培养基,补加K 1.0 mg/L,2,4-D 2.0 mg/L及0.5%活性炭效果最好,进而可在附加0.5 mg/L 6 BA和0.1mg/L NAA下分化出肾形胚,在较低水平激素及附加必要有机物情况下,肾形胚可以大量繁殖继代。并可继续萌发成正常幼苗。从我们的实验结果看,有可能利用诱导的胚状体继代作为无性系,以便为性状正齐一致的,优良的龙眼砧木的快速繁殖开创新途径,并可作为育种的一种手段。

A parasitological survey was conducted by examining carcases of ducks(Anas platyrhynchos domesticus,L.)collected from Fuzhou markets.Altogether 100 gall bladders were examined for Metorchis orientalis and M.taiwanensis,both of which were known to occur in the area.The in- cidence of infestation as well as the morphological differences between the two species were reported as follows: Metorchis oritalis,30 percent infestation.Total number of worms secured is 338.The intensity of infection for each duck is 1-51(average...

A parasitological survey was conducted by examining carcases of ducks(Anas platyrhynchos domesticus,L.)collected from Fuzhou markets.Altogether 100 gall bladders were examined for Metorchis orientalis and M.taiwanensis,both of which were known to occur in the area.The in- cidence of infestation as well as the morphological differences between the two species were reported as follows: Metorchis oritalis,30 percent infestation.Total number of worms secured is 338.The intensity of infection for each duck is 1-51(average 11.27). Metorchis taiwanensis,91 percent infestation.Total number of worms secured is 1,850.The intensity of infection for each duck is 1-113(average 20.3). The occurrence of mixed infestation is 37 percent. The ratio between body length and body width for M.orientalis]is 2.99-4.49:1(average 3.8:1),for M.taiwanensis is 4.26-11.2:1(average 5.96:1). The cuticular spines afford good characters for species differentiation.Those spines from ventral surface area between oral sucker and acetabulum are comparatively broad but shorter for M.orientalis measuring 0.0170—0.0222×0.0085—0.0148 mm.with terminal denticulation 5—12 in number,while those spine of M.taiwanensis are longer and narrower,measuring 0.0187—0.1255×0.0068—0.0102 mm.,with terminal denticulations 3—6 in number. Tha testes of M.orientalis are lobed,while those of M.taiwanensis are rounded or rarely with shallow indentations.The length ratio between seminal receptacle and ovary for M.orietalis is 1—1.77:1(average 1.42:1)and for M.taiwanensis 1.35—2.957:1(average2.208:1). The seminal receptacle of the latter is larger and usually with two bends. Egg The eggs of M.orientalis measure 0.0289—0.0323×0.0144—0.0170(average 0.0306×0.0159mm.), while eggs of M.taiwanensis measure 0.0255—0.0306×0.0136—0.0170 mm.(average 0.0282×0.0157 m.).The eggs of the latter species are slightly smaller. Miracidium The miracidia of M.orientalis measure 0.0272—0.0306×0.0102—0.0136 mm.,while those of M.taiwanensis measure 0.0170—0.0253×0.0102—0.0136 mm. As indicated above the size-differences for the eggs and miracidia of these two species are very slight and insignificant for diagnostic purposes. Our observations showed that the morphology and structure of the eggs and miracidia of M.orien- talis and M.taiwanensis closely resemble each other and also those of other species of the family, Opistborchiidae Braun 1901,such as Opisthorchis felineus and Clonorchis sinensis.The similarities of these forms indicated the close phylogenetic relationship of these genera.

台湾次睾吸虫(Metorchis taiwanensis Morishita,1929)和东方次睾吸虫(Metorchis orientalis Tailabe,1921)与寄生人体的华枝睾吸虫(Clono-rchis sinensis)和猫后睾吸虫(Opisthorchis,filineus)同隶于后睾科(Opis-thorchiidae Braun,1901)。本文对这两种次睾吸虫的成虫、虫卵和毛蚴的形态构造作详细描述和比较,并阐述成虫的受精囊和卵巢的长度比例及体棘的形态可作为次睾吸虫属的分类依据。这两种吸虫的虫卵和毛蚴的形态构造与后睾科的其他属的某些种类,例如华枝睾吸虫和猫后睾吸虫的虫卵和毛蚴的特征很相似,说明它们之间有密切的亲缘关系。这方面知识对于后睾吸虫系统发生问题的研究,提供了参考资料。

The optimization design of electrical communication technology is to find out global optimization. For the common optimization designs are in the state of research, it may be failure or to find out only the partial optimization. This paper suggests global direct optimization method of design. It has small time of calculation. small error of design and obtained global optimizatin.It is designed nearly ten attenuation equalizers of 300 channels carrier system with this method. From the measurement and inspection...

The optimization design of electrical communication technology is to find out global optimization. For the common optimization designs are in the state of research, it may be failure or to find out only the partial optimization. This paper suggests global direct optimization method of design. It has small time of calculation. small error of design and obtained global optimizatin.It is designed nearly ten attenuation equalizers of 300 channels carrier system with this method. From the measurement and inspection of factory, all designs have good character and more economic value. Therefore, it is suggested that this method should be adopted to design equalizers.

电信技术中最优设计为求全优。由于最优设计还处于研究阶段,一般最优设计经常失败,或只能求得局优。本文提出“全域直接最优设计法”。它运算机时少,设计偏差少,且得全优。用本法设计300路载波系统近十种衰耗均衡器,皆得全优。经工厂实测鉴定,设计特性全部良好,经济价值较高。因此,本法被推荐用于设计均衡器。

 
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