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  history
     A Study on the History of the Associations of Overseas Chinese in Malaysia
     马来西亚华人社团研究
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     Study on the History of Political Relations of Northeastern Asia from the Fourth to the Seventh Century
     公元四至七世纪东北亚政治关系研究
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     The Study of the Silk External Trade History in Guangdong
     近代广东对外丝绸贸易研究
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     Studies on Economic History in Jinqu Region 960-1949
     金衢地区经济研究:960—1949
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     Reservoir Goechemical Study of Hydrocarbon Filling History Continental Basin
     陆相盆地油气充注的油藏地球化学研究
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  a history
     2.2%(1.4%~3.4%) of them have non-spouse sex partners and 0.3%(0.1%~1.0%) of them have a history of drug-use.
     2.2%(1.4%~3.4%)的外来妇女有婚外性行为,0.3%(0.1%~1.0%)的外来妇女有吸毒
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     55 patients had a history of diabetes,46(42%) in the PIS group,and 9(8%) in the control group(P<0.01);
     ②有糖尿病者,PIS组46例(42%),非PIS组9例(8%),P<0.01。
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     22 patients had a history of coronary heart disease,17(16%) in the PIS group,and 5(4%) in the control group(P<0.05);
     ⑥有冠心病者,PIS组17例(16%),非PIS组5例(4%),P<0.05。
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     Results Single factor analysis: Among the 220 patients in both groups,108 had a history of hypertension,73(66%) in the PIS group,and 35(32%) in the control group(P<0.01);
     结果单因素分析:①有高血压病者,PIS组73例(66%),非PIS组35例(32%),P<0.01。
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     (2) The expression of p53 associated with a history of smoking (P0.05) , there was significant positive association of p53 and Bcl-2 expression (P<0.05), while the expression of p53 was inversely related to Bax(P<0.05).
     (2)p53的表达与患者的吸烟呈正相关(P<0.05),p53与Bcl-2的表达呈显著的正相关(P<0.05),p53与Bax的表达之间呈显著的负相关(P<0.05)。
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     Studies on the Life-History Strategies of Stellera Chamaejasme Population in the Degraded Steppe of Northeast China
     东北退化草原狼毒种群生活对策研究
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     Research on and Implementation of Chinese Structured Information Retrieval
     文结构化信息检索系统的研究与实现
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     Study on the Characteristics and Mechanisms about Plant Life Cycle Forms of Acanthopanax Senticosus
     刺五加生活型特征及其形成机制的研究
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     The Characters and Forming Mechanism of Life Cycle Forms Diversity of Catharanthus Roseus
     长春花[Catharanthus roseus(L.)G.Don]生活型多样性的特征及其形成机制的研究
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     Trade Relations of Chosun with Ming China and Japan during 14~(th)-17~(th) Centuries
     14世纪-17世纪中叶朝鲜对明和日本贸易关系研究
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  history
History and Evolution of the Density Theorem for Gabor Frames
      
Lycium barbarum, a famous Chinese medicinal herb, has a long history of use as a traditional remedy for many diseases.
      
It is recognized throughout history that understanding the properties of resources and transforming these resources into products are regarded as the nucleus of science and technology.
      
It is also discovered that the major approaches to artificial intelligence in history, the structuralism, functionalism and behaviorism, can harmoniously be unified within the framework of the mechanism approach and no longer be contradictory.
      
In addition, biodiversity is a product of evolutionary history, and soil erosion is a key factor controlling the evolution of modern environment on the surface of the Earth.
      
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  a history
A history of two fundamental results of the mathematical system theory-the Kalman-Popov-Yakubovich lemma and the theorem of losslessness of the S-procedure-was presented.
      
On the contrary, the use of nonspecific immunity modifiers in patients with a history of immune insufficiency often activates the inflammation and promotes its effective termination.
      
The analysis of psychological features in pilots with a history of attempted suicide showed a neurotic type of maladaptation formed on the basis of the domination of hyposthenic traits in the personality structure.
      
The most "vulnerable" functions in right-handed boys with a history of various pathologies are the organization of activity and visuospatial perception; in left-handed boys, these are fine motor skills and speech development.
      
This paper provides a history of research at the Department of Embryology on the teleostean loach fishMisgurnus fossilis L.
      
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The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second...

The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second one occursin mid-July and the last in late-August. Due to the lower temperature, theemergence of the first generation need about two months. 2. In day time, the adult is usually inactive, while in windless night,after seven o'clock, it becomes very active and lays eggs mostly on green bollsand calyx. about a week later, the eggs hatch and the newly-hatched larvaeare shortly getting into the bolls. After four days they often eat into theseeds. Ten days later, the lint is so stunted as to become dusky yellow incolor, thus both the yield and the quality of cotton are greatly lowered. Themature larvae appear about half a month after. 3. Field experiments have shown that three dustings of 10% DDT- sulfurpowder were very effective. In the severely damaged cotton area, the thirdspray may be simultaneously done with controlling the cotton leaf-hoppers andthe cotton leaf-rollers. 4. About 84% hibernating larvae in cotton seeds will come out when thecotton exposed in sun light and stored in the farmer's house. Hence it seemsadvisable to put cloth or other soft material covers on the cotton stored inorder to collect and kill the larvae under them. In addition, destruction of allremaining bolls on the cotton stalks, as early as possible in winter is important. 5. For controlling the bollworms in cotton store-houses, the followingresults have been obtained 50% wettable DDT diluted with 20 parts of water,91% of larvae were killed within 30 days; 6.5% 666 (benzene hexachloride)gave a mortality of 63% in four months. Wettable 6.5% 666 diluted withwater (1:100), has been proved to be the most effective ovicide which destroys99.4% of eggs while parathion (E605) also gave a very high mortality at97.7%. But 50% wettable DDT (1:100) Kills eggs at 64.2% and lead arsena-te only 16.2% respectively. 6. There were 39.1% overwintering larvae parasitized by parasitic mitesand wasps. Among them, most are the mite, Pediculoides ventricosus Newport,while the parasitic wasps Eurypterna arakawae Mats. less than 0.5%.

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%...

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差为16.2%。 6.越冬幼虫被寄生的平均有39.1%,发现天敌有二种,其中绝大多数是榖痒螨(Pediculoides ventricosus

The present paper gives a report on the observations of the citrus psylla, Diaphorina citri Kuwayama, found in Focchow and Changchow of Fukien Province. The insect has been reported as an important citrus pest in south-eastern Asia, and is heretofore recorded from Kwangtung by Hoffmann (1936) and from Taiwan by Shiraki (1934). The citrus psylla attacks l3 species of plants of the family Rutaceae. Eggs are laid on the leaves of the young growth. The feeding of both the nymphs and adults on foliage of the new...

The present paper gives a report on the observations of the citrus psylla, Diaphorina citri Kuwayama, found in Focchow and Changchow of Fukien Province. The insect has been reported as an important citrus pest in south-eastern Asia, and is heretofore recorded from Kwangtung by Hoffmann (1936) and from Taiwan by Shiraki (1934). The citrus psylla attacks l3 species of plants of the family Rutaceae. Eggs are laid on the leaves of the young growth. The feeding of both the nymphs and adults on foliage of the new terminal growth results in the leaves, becoming thick and leathery. The leaves and the young shoots are usually distorted, dwarfed, or in severe cases, even dried. The annual life cycle of the insect in Fukien Province has not been investigated thoroughly. However, preliminary observations made during the year of 1952 show that different developmental tsages of citrus psylla could be found all the year round. There is no marked phenomenon of hibernation. Concentration of a number of adults on the same leaf usually occurs during the winter months. Both nymphs and adults become very abundant in April when dam- ages are most severe. Sixteen days are required for the insect to complete a generation in August. The number of individuals de- creases after September. The nymphs are attacked heavily by three species of chalcid parasites of the family Encyrtidae. Morphological descriptions of the different stages of the insect are also given in this paper.

柑桔木虫分布于亚洲东南的热带和亚热带地区,为害芸香科植物,是柑桔类主要害虫之一。国内除台湾、广东外,其他各地尚无报告。现知福建的福州、漳州也都有,本文系在福州观察的记述。成虫栖息取食常在芽和叶里的叶脉上。产卵于嫩芽,若虫孵化后就在新梢为害。被害叶芽枯干,枝梢萎缩,新叶畸形卷曲。生活尚待详细研究,但根据一年来的初步观察,一年到头都可以找到各个虫期;自四月以后为害渐见严重,至九、十月则逐渐减少。夏季完成一个世代约需十六天。冬季多以成虫密集叶里,但无休眠迹象。育得跳小蜂科寄生蜂三种,九月至十一月若虫被寄生者甚多。本文对于柑桔木虫各期形态有简略的叙述。

Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity inat...

Pleonomus canaliculatus Falderm. is one of the most destructive soil-inhabitinginsects to wheat in Honan. It causes considerable losses to the crop in spring bycutting the underground part of the stems, causing withering and death of the plant.The life history, distribution, host plants, morphology and rearing methods of theinsect are given in this paper. The overwintering adults become active in spring. Eggs are laid in the topsoil about the plant. They hatch in 5-8 weeks and the larvae grow to maturity inat least 15 months. Pupation takes place during late August up to mid-septemberand the pupal stage requires about 2 weeks. The young adults remain and overwinterin their pupal cells. Fall plowing to a depth of 6 to 9 inches soon after the harvest of summer cropswill destroy a great number of pupae and young adults by breaking up their cells inthe soil. The larvae are thus turned up and exposed to the predators. Rotation ofcrops by using sesame or legumes instead of millet preceding wheat, and summerfallow of the land are found to be helpful to lessening the infestation. Control may be effective by dusting γ-BHC (at,1.5 to 2.5 kgs of 0.5% γ-BHC permow mixed with 3 parts of dry soil or sand) into the top soil by means of a tripodhand-driller between the rows just before the activity of wireworms in spring.

1.沟金针虫需2年以上完成一代生活。越冬成虫2月下旬出土,3月中旬至4月中旬为活动盛期,产卵在1至2寸表土内,卵于5月初孵化,卵期为5至8星期。老熟幼虫8月下旬开始化蛹。9月中旬起羽化,蛹期约2星期。成虫羽化后即行越冬。 2.越冬幼虫2月底至3月中旬开始向表土活动(10厘米处地温8—12℃左右),3月中旬及4月全月是为害盛期(80%以上幼虫集中在1至2寸之表土内),8月至12月表土之幼虫密度极小(仅有虫1.2—6.8%),不致为害成灾。 3.沟金针虫之天敌除一种壁虱(Cheyletus sp.)和一种蜘蛛及蚂蚁外,尚有寄生菌2种,具中一种经鉴定为冬虫夏草(Cordyceps sp.)之一种。 4.小麦整地时适当深犁(5—7寸)并精耕细作能毁杀大部分蛹体及成虫,并可将幼虫翻上来供鸟类捕食(9,10月间97%老熟幼虫,在5—7寸土内化蛹及羽化,同时88%幼虫分布于1—7寸土内)。此外以芝麻与豆类为小麦前作及夏季休间结合翻耕曝晒亦能减少虫害损失。 5.沟金针虫在河南的主要为害期系在春季,所以早春於麦行间耩666毒土或毒沙以毒杀向表土上升之幼虫是值得继续研究的。

 
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