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snail population
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  “snail population”译为未确定词的双语例句
     hupensis including a snail population from Guangxi Province, and was 3.15 (95% CI: 2.86-3.76) excluding the Guangxi snail population;
     不包括广西钉螺种群时,中位数为3.15(95%CI:2.86~3.76)。
短句来源
     Among smooth-shell populations,the median of Euclidean distance of the snail population from Dali,Yunnan Province was the most(1.90),but the variance and range of Euclidean distance of the snail population from Yixing,Jiangsu Province were the most(0.55 and 4.46 respectively).
     在不同光壳湖北钉螺种群中,以云南大理湖北钉螺个体间的平均距离最大,为1.90,但方差和极差以江苏宜兴的最大,分别为0.55和4.46。
短句来源
     Long-term observation was employed as the main research method to the study the relation of the dynamics of snail population to silvicultural measures and ages of different types of lakeside poplar plantations.
     在洞庭湖区滩地对不同类型杨树抑螺防病林采取定位观测的研究方法,对滩地钉螺种群变化与抑螺防病林营造措施、林龄的关系及其内在机制进行了研究。
短句来源
     21 Oncomelania hupensis populations were collected from the different environment types of seven provinces with Schistosomiasis japonicum in mainland of China. Sixty individuals were sampled randomly for each snail population and 11 morphological traits were measured for each snail.
     在中国大陆血吸虫病流行的7个省中,采集不同环境类型的21个湖北钉螺(Oncomelania hupensis)种群,每个种群各测量60只湖北钉螺的11个形态性状。
短句来源
     h. hupensis including a snail population from Guangxi Province, 0.2567 not including it; and was 0.3121 for ribbed-shell population.
     指名亚种包括广西钉螺种群时r为0.2655(P<0.01),不包括时r为0.2567(P<0.01),肋壳钉螺种群的r为0.3121(P<0.01)。
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  相似匹配句对
     Snail and Tumor
     Snail与肿瘤
短句来源
     Population 436
     绝命人口436
短句来源
     Snail's Mailbox
     大眼蜗牛信箱
短句来源
     Population Census
     中国人口普查研究
短句来源
     STUDIES ON THE CORRELATION BETWEEN ONCOMELANIA SNAIL POPULATION AND THE QUANTITY OF THE SNAIL DETECTED
     河沟钉螺检出情况与螺口关系的研究
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  snail population
The snail population was recorded high from April to October.
      
These negative effects of zebra mussels on growth and burrowing ability will likely lead to decreases in snail population densities in the future.
      
In Lake Albert, an ecological study was conducted, between June 2000 and May 2003, which assessed snail population dynamics, parasite infection patterns and interplay of environmental factors upon Biomphalaria.
      
During summer the densityof both infected snails and infected amphipods increased considerably, witha culmination in June within the snail population (1000 infectedm-2 and in August within the amphipod population (40 000infected m-2.
      
The utility of this study in predicting seasonal fluctuations of snail population in nature is discussed.
      
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Studies were undertaken in 32 Oncomelania Snail-infected canal sections in Lumu Commune of Wuxian County in 1980. The results showed that the snail density in each canal section determined in the first survey was parallel to the total population of that section. There was a linear positive correlation between the snail density detected in the first survey and the density of the total snail population. However in low snail popular tion (below 0.7/square Chinese foot) area, snails may not be...

Studies were undertaken in 32 Oncomelania Snail-infected canal sections in Lumu Commune of Wuxian County in 1980. The results showed that the snail density in each canal section determined in the first survey was parallel to the total population of that section. There was a linear positive correlation between the snail density detected in the first survey and the density of the total snail population. However in low snail popular tion (below 0.7/square Chinese foot) area, snails may not be detected in the first survey. Results also showed that a linear positive correlation existed between the density of the snail eggs and the density of the total snail population.

本研究在吴县陆墓公社32段有钉螺的河、沟中进行。研究结果发现河、沟钉螺的检出情况与螺口多少有关,第1次查螺检出的活螺密度与实际活螺密度之间呈线性正相关;在4、5月份作一次全面细查后,一般第1次的检出情况能反映出当时被查河、沟的螺口多少;但螺口密度很低的河、沟(实际活螺密度在每平方市尺0.7只以下)在第1次查螺时可能检不出。又发现螺卵密度与实际活螺密度之间也呈线性正相关。

The impact of Forest-Agrosystem on the population of Oncomelania was investigated using multi-years experimental data.The reduction of the snail population was attributed to large variation of microclimatic and soil characteristics in the Forest-Agrosystem.Such microenvironmental variation significantly influenced the contents of glycogen and amino acid,and the activities of SDH and LDH in the snail,resulting in reduced growth and reproductivity of the snails.The effect of Forest-Agrosystem...

The impact of Forest-Agrosystem on the population of Oncomelania was investigated using multi-years experimental data.The reduction of the snail population was attributed to large variation of microclimatic and soil characteristics in the Forest-Agrosystem.Such microenvironmental variation significantly influenced the contents of glycogen and amino acid,and the activities of SDH and LDH in the snail,resulting in reduced growth and reproductivity of the snails.The effect of Forest-Agrosystem on the snail density may fluctuate during the dynamics of the system and the seasonal flooding.During which the snails can come from the neighhouring system,Thus,regular cutting to ensure intercropping and developing fish farming in the neighbouring grass land and establishing more Forest-Agrosystem in Low-middle reaches of Yangtse river may help control Oncomelania persistently.

本文利用连续数年在试验基地观测和调查资料,结合五省其它试验点的研究结果,探讨了林农复合系统灭螺机制及其持续灭螺方法.结果显示,林农复合系统的小气候特征、土壤环境以及实施的耕翻间种措施等不利于系统内钉螺的孳生,使钉螺体内糖原含量明显减少,SDH、LDH活性下降,蛋白质总量和氨基酸含量降低,影响了钉螺的生存和繁殖.林农复合系统动态生长以及汛期外系统钉螺随水而来会影响灭螺.采用间伐、邻近草滩发展水产养殖以及在更大范围建立林农复合系统可以持续灭螺.

It is thought that the length of snail shell differentiated the baby from the adults by a systemtic observation on snails in Yunnan Province. The successive of the snail population was in summer. There are more baby snails,and the snail succesion index (SSI) of the baby and the adult snails is 0.4516 in this period. But,infected snails are more in autumn,it is the successive period of the infected snail. The greater part of the snails have been dead that were infected...

It is thought that the length of snail shell differentiated the baby from the adults by a systemtic observation on snails in Yunnan Province. The successive of the snail population was in summer. There are more baby snails,and the snail succesion index (SSI) of the baby and the adult snails is 0.4516 in this period. But,infected snails are more in autumn,it is the successive period of the infected snail. The greater part of the snails have been dead that were infected in last year, and the snails are mostly in the development of cercariae that were infected in this year,and the SSI is 3. 6201. It is suggested that the snails are eradicated twice in every year. The uninfected and Infected snails of the previous year would be eradicated in May so as to protect human and domestic animals from infection, and to prevent them from succession;the uninfected and infected snails of this year would be eradicated in October so as to lessen the dangers in next year.

通过系统观察,认为云南省钉螺仍以壳长划分成、幼螺比较客观。夏季幼螺最多,交替指数0.4516,是云南钉螺螺口交替时期。秋季感染性钉螺最多,上年感染的螺已大部份消亡,当年感染的螺多处于尾蚴发育阶段,交替指数为3.6201,是感染螺主要交替时期。建议每年灭螺2次:5月消灭上年生钉螺和感染螺,防止人畜感染,阻碍其交替:10月消灭当年生钉螺和感染螺,减少下一年的危害。

 
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