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later than
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  晚于
     Results The starting-time in PK group was 29s, which was significantly later than that(23 s) in control group(P < 0.05);
     结果血栓出现的时间:对照为23 s,PK组为29 s,PK组明显晚于对照组(P<0.05)。
短句来源
     Compared with the activity of SOD and CAT,the activity peak of POD was also later than that of SOD’s and similar to that of CAT’s.
     与SOD和CAT活性相比,POD活性高峰同样晚于SOD,与CAT相同。
短句来源
     The SUH occurrence time of preventive group was on the (2.36±2.04) day after operation later than that of the control group which was on the (2.18±1.79) day (t=1.79, P<0.05).
     预防组SUH发生时间为 (5 77± 0 3 3 )d ,对照组发生时间为 (2 18± 1 79)d。 SUH发生时间 ,预防组明显晚于对照组 (χ2 =1 79,P <0 0 5 )。
短句来源
     (2) the breaking time of HS' interannual variation is later than that of SST in the late 1970s and early 1980s, with SST (HS' ) increasing(descreasing);
     (2)1970年代末和1980年代初发生的年代际跃变HS’晚于SST’,且SST’(HS’)呈增温(减少)趋势;
短句来源
     The Motianling granite sample(S1) collected beneath the onlap boundary gives a TIMS U-Pb zircon age of 825±2.4 Ma,implying that the deposition within the Neoproterozoic rift systems began at the time later than 825±2.4Ma.
     取自该地区沉积超覆面之下摩天岭花岗岩样品的TIMS锆石U-Pb同位素年龄为825.0±2.4Ma,表明该地区新元古代裂谷系开始接受沉积的时间应该晚于825±2.4Ma;
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  “later than”译为未确定词的双语例句
     average visiting time was later than that of CPMI group(15.6 h±2.4 h vs 6.7 h±3.1 h,P<0.001);
     平均就诊时间晚(15.6h±2.4h对6.7h±3.1h),P<0.001;
短句来源
     The stage of root senescence at the 20-40 cm and 40-100 cm soil layers was later than that at the 0-20 cm soil layer.
     20~40cm和40~100cm土层根衰老迟于0~20cm土层根。
短句来源
     Was at 01 : 50 : 30 (05m49s later than optical maximum eclipse), and at 03 : 12 : 20 the partial eclipse ended.
     食甚时刻01~h50~m30~s(比光学食甚推迟05~m49~s),复圆时刻03~h12~m20~s。
短句来源
     The levels of IgG, IgM and CD 3 +, CD 4 +, CD 8 +, CD 16 + in intervention group were higher 3 months later than the control group (P<0.05 or 0.01) .
     IgG、IgM ,CD3 + 、CD4+ 、CD8+ 及CD16+ 等免疫参数干预组较对照组明显改善 (P <0 .0 5或 0 .0 1)。
短句来源
     Results starting to show effect in the acetyl spiramycin group (5~6d) was later than that in the terfenadine group(2~3d). However,the recovery rate and effective rate in the acetyl spiramycin group(68%,92%) were higher than those in the terfenadine group(15%,60%)(χ~2=33.843,χ~2=6.737,P<0.01).
     结果乙酰螺旋霉素治疗组开始起效时间(5~6 d)慢于特非那丁治疗组(2~3 d),但乙酰螺旋霉素治疗组治愈率和有效率(68%、92%)均高于特非那丁治疗组(15%、60%)(χ2=33.843,χ2=6.737,P<0.01)。
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     Later ,M.
     随后,M.
短句来源
     2 is later than on resin No.
     在2号吸附树脂上的解吸曲线最高点处生育酚浓度高,且拖尾不严重。
短句来源
     The formes better than the later (P < 0.01 ).
     两组的治愈率及治愈时间相比有显著差异(P<0.01)。
短句来源
     than group
     血清和肝匀浆GSH-Px活力也高于补硒组。
短句来源
     b than to Guangdong N.
     b和日本株N .
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  later than
agrili was more than one month later than that of its host.
      
This fact permitted the assumption that the mechanisms ensuring the identification of emotions against the background of noise by stuttering children form in ontogeny later than that in normally speaking children.
      
The hypothesis is discussed that blood is filtered by neutrophils accumulated in capillaries, which ensures the contact of neutrophils with microorganisms no later than 5-10 min after the microorganisms enter the blood circulation.
      
The period of the maximum synthesis of plasmin-like enzymes was observed 6 h later than the period of the maximum growth rate ofB.
      
firmus 44b, and 3 h later than the maximum growth rate period ofB.
      
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The pine caterpiller,Dendrolimus punctatus Walker, has the habit of leav-ing the crown part of a tree and hibernating under the loose bark of thetrunk. The present paper reports the successful control of this pest by treatinga part of the trunk with a DDT suspension. All experiments were carried outat Nanking, 1947-48. When solutions and water suspension containing 5% DDT, 1%γ 666,or 5% 1068 were applied with a brush to the trunk for a width of one footand over-wintering larvae were allowed to crawl over the...

The pine caterpiller,Dendrolimus punctatus Walker, has the habit of leav-ing the crown part of a tree and hibernating under the loose bark of thetrunk. The present paper reports the successful control of this pest by treatinga part of the trunk with a DDT suspension. All experiments were carried outat Nanking, 1947-48. When solutions and water suspension containing 5% DDT, 1%γ 666,or 5% 1068 were applied with a brush to the trunk for a width of one footand over-wintering larvae were allowed to crawl over the treated area, all theinsecticides tested were found to be effective when freshly applied. After oneweek, how-ever, only preparations containing DDT remained effective. DDTwater suspension was markedly better than DDT in kerosene, soybean oil, oracetone. Trees treated with a 5% DDT water suspension were still very toxic tothe caterpillars at the end of six weeks. The number of caterpillars crawling over a DDT-treated area would notinfluence the toxicity of the DDT film under practical field conditions. In oneexperiment all area of twenty inches square, treated with a 5% DDT suspension,still showed high toxicity to the caterpillars after 1,800 larvae had crawled overthe area in a period of nine days. Caterpillars were found to be more resistant to DDT in summer than inwinter. By increasing either the concentration of DDT to 10-15% or thewidth of the treated area to 2-3 feet, the "trunk treatment method" could beused as well in summer, if the caterpillars were beaten down to the grounedafter the trees had been treated with DDT. Under the field conditions in Nanking, 1947-48, the pine caterpilIars beganto leave the crown part of the trees and seek hibenation quarters in November.They became active again early in March, hence tree should he treated withDDT not later than the dates mentioned above. A total of 157,658 trees were treated with DDT on the Purple Mountain,Nanking, 1948. Examinations showed that larval population decreased 90-99%in the treated area, while in the check area an increase in population of16-350% had been observed.

本文研究在松树干上涂刷有持久性的药剂以防治越冬松毛虫的可能性。1947—48年在南京试验及实施防治的结果简述如下: (一)在实验室内使越冬松毛虫爬行越过涂有一市尺宽各种药液的松树干的结果,证明5% DDT,1%γ666,与5% 1068的悬液或溶液。在涂药的当天均 有相当高的杀虫效力,惟一周以后γ666与1068完全失效,仅DDT仍保持强大的毒力。DDT水悬液显著较DDT火油、大豆油或丙酮溶液为佳。涂有5%DDT悬液的松树杆曝露田间六星期后,杀死松毛虫能力仍达100%。 (二)据试验的结果,自制的可湿性DDT,内含DDT50%,稀释剂45%,与肥皂5%,尚适宜于防治松毛虫之用。 (三)松毛虫爬行的次数对涂药面积上DDT毒力的影响极微,在二十平方市寸涂有5% DDT悬液的小面积上,9天之内经过1800头松毛虫爬行后,毒力仍未减小,死亡率尚在90%以上。 (四)夏季松毛虫较越冬松毛虫不易杀死。夏季松毛虫抵抗DDT的能力随龄期而增强。试验中显示如增加药液浓度至含DDT 10—15%,或增加涂药的宽度至2—3市尺,夏季幼虫亦能中毒死亡。故树干涂药法亦可应用在夏季防治上,惟必须在涂药后将松毛虫从树上击落,使其在爬返树冠...

本文研究在松树干上涂刷有持久性的药剂以防治越冬松毛虫的可能性。1947—48年在南京试验及实施防治的结果简述如下: (一)在实验室内使越冬松毛虫爬行越过涂有一市尺宽各种药液的松树干的结果,证明5% DDT,1%γ666,与5% 1068的悬液或溶液。在涂药的当天均 有相当高的杀虫效力,惟一周以后γ666与1068完全失效,仅DDT仍保持强大的毒力。DDT水悬液显著较DDT火油、大豆油或丙酮溶液为佳。涂有5%DDT悬液的松树杆曝露田间六星期后,杀死松毛虫能力仍达100%。 (二)据试验的结果,自制的可湿性DDT,内含DDT50%,稀释剂45%,与肥皂5%,尚适宜于防治松毛虫之用。 (三)松毛虫爬行的次数对涂药面积上DDT毒力的影响极微,在二十平方市寸涂有5% DDT悬液的小面积上,9天之内经过1800头松毛虫爬行后,毒力仍未减小,死亡率尚在90%以上。 (四)夏季松毛虫较越冬松毛虫不易杀死。夏季松毛虫抵抗DDT的能力随龄期而增强。试验中显示如增加药液浓度至含DDT 10—15%,或增加涂药的宽度至2—3市尺,夏季幼虫亦能中毒死亡。故树干涂药法亦可应用在夏季防治上,惟必须在涂药后将松毛虫从树上击落,使其在爬返树冠时接触药剂而死亡。 (五)自然情形下,南京松毛虫在十一月即开始下树越冬,至来年三月初开始活动上树,故采用树干涂药法防治下?

1. In this study which has been carried on since 1949,attempts were made toanalyse factors involved in the outbreaks of stripe rust of wheat in North Chinawith a view of giving some clues for forcasting.Five periods of the developmentof an epidemic of the stripe rust in this region are recognized:(1) the infectionand divelopment period of the rust on wheat seedlings in the autumn,(2) the over-wintering period,(3) the over-springing period,(4) the development period in thelate spring,and (5) the over-summering...

1. In this study which has been carried on since 1949,attempts were made toanalyse factors involved in the outbreaks of stripe rust of wheat in North Chinawith a view of giving some clues for forcasting.Five periods of the developmentof an epidemic of the stripe rust in this region are recognized:(1) the infectionand divelopment period of the rust on wheat seedlings in the autumn,(2) the over-wintering period,(3) the over-springing period,(4) the development period in thelate spring,and (5) the over-summering period.For each of the above stated peri-ods,the degrees of the stipe rust development are described and the main factorseffecting the development are analysed. 2. In the autumn,if field conditions were favorable for infection,the earlier ??the date of sowing,generally the heavier the wheat crops would be rusted.Therewere little or no stripe rust developed when the date of sowing wes later than thelast part of September although the condition might be varied appreciably withdifferent localities.Besides temperature,the period of high concentration of air-bornespores was the most important factor determining the disease severity in the earlysown wheat fields. 3. The stripe rust organism was capable of over-wintering in the form of dormant mycelium within infected leaves under the weather conditions of North Chinaplain.Heavy infection of wheat seedlings was the prerequisite of over-wintering,which was also influenced by micro-environmental conditions such as air temperat-ure,soil moisture and protection from wind.Air temperature was probably the mostessential factor. 4. The dry weather and the low moisture contents in the soil in the earlyspring were unfavorable to the development of the rust.Under these conditions,the over-wintering rust might be completely killed off or much lessened,while hig-her soil humidity usually favored the overspringing of the rust organism.Furtherdevelopment of the disease appeared to depend on the amount and frequency ofprecipitation.However,in flooded areas where the soil moisture was excessivelyhigh,epidemics might occur under dry weather. 5. The over-wintering inoculum was most important for local epidemics in spring,although long distance air-borne spore might also have some influence on the rustdevelopment in the later part of the wheat growing season. 6. Uredospores of stripe rust were not capable of over-summering on volunteerwheats in North China plain.Stripe rust collections from Elymus chinense andAgropyron spp.were capable to infect certain wheat varietes when inoculated arti-ficially,but under natural conditions these grasses appeared to play little part inthe aestivation of this rust in the vast wheat growing areas of North China.Theresults of spore-trapping indicated that Chang-Chia-Kow region and certain partsof inner Mongolia where spring wheats mature as late as the end of August weremost probably the reservoir of over-summering fungus which serve as the mainsource of autumnal infection. 7. Since there are great diversity of types of farming in North China,i.e.,(1)the dry land,(2) the well and river-irrigated land,(3) the low land and river-irrigated land of the mid-part of Shansi Province,and (4) the autumn floodedland,and as the environmental factors effecting the first four stages of stripe rustdevelopment were varied,consequently,the rust development in each type of landwas obviously different from others.The disease struck most severely in the wellor river-irrigated and the autumn-flooded lands. 8. Based on the foregoing results,the writers suggest that by means of timelyobservations and inspections on the stripe rust development during autumn and onthe amounts of the Survival after over-wintering and over-springing along with theweather forecasting data,it is possible to make fairly accurate forecast of the striperust epidemics in North China.

1.华北区小麦条銹病主要的流行区域是井水地、渠澆地及水涝地。2.在秋季田間环境对侵染有利的情况下,小麦播种愈早的發病愈重。播种期晚于一定期限(各地不同,一般是9月下旬)發病就很輕或根本不發病。除温度外,空中孢子在秋季集中时期是决定早播病重的最重要原因。3.条銹菌可在华北北部平原的一般气候条件下以菌絲越冬。越冬的条件有二:首先是麦苗發病严重;其次是小气象适合。后者包括温度、土壤湿度与遮蔽物的有無等,其中起主导作用的是温度。4.春季的土壤湿度愈高,对条锈菌的“越春”愈有利。锈菌越春以后的流行一般是决定于雨水的多寡。但土壤湿度过大时(水涝地),也可以不依賴雨水多寡而在小区域內流行。5.春季菌源是多元的,但本地越冬菌起决定性作用,外地吹来的孢子只在后期起輔助作用。地面發病的严重程度和时期与空中孢子發現日期及濃度成正相关。6.条锈菌不能在华北平原的自生麦上和用抱子形态越夏,禾本科杂草中碱草及綠鬚鵝冠草锈菌用人工接种,虽可以發生枯斑反应或长出少数条锈病斑,但在分类上与小麦条銹菌不同,在大面积上不起越夏桥梁作用。根据秋季空中孢子捕捉和地面調查結??果,北方張家口专区壩土及內蒙古平地泉行政区等晚熟春麦区作为小麦条銹菌越夏菌源...

1.华北区小麦条銹病主要的流行区域是井水地、渠澆地及水涝地。2.在秋季田間环境对侵染有利的情况下,小麦播种愈早的發病愈重。播种期晚于一定期限(各地不同,一般是9月下旬)發病就很輕或根本不發病。除温度外,空中孢子在秋季集中时期是决定早播病重的最重要原因。3.条銹菌可在华北北部平原的一般气候条件下以菌絲越冬。越冬的条件有二:首先是麦苗發病严重;其次是小气象适合。后者包括温度、土壤湿度与遮蔽物的有無等,其中起主导作用的是温度。4.春季的土壤湿度愈高,对条锈菌的“越春”愈有利。锈菌越春以后的流行一般是决定于雨水的多寡。但土壤湿度过大时(水涝地),也可以不依賴雨水多寡而在小区域內流行。5.春季菌源是多元的,但本地越冬菌起决定性作用,外地吹来的孢子只在后期起輔助作用。地面發病的严重程度和时期与空中孢子發現日期及濃度成正相关。6.条锈菌不能在华北平原的自生麦上和用抱子形态越夏,禾本科杂草中碱草及綠鬚鵝冠草锈菌用人工接种,虽可以發生枯斑反应或长出少数条锈病斑,但在分类上与小麦条銹菌不同,在大面积上不起越夏桥梁作用。根据秋季空中孢子捕捉和地面調查結??果,北方張家口专区壩土及內蒙古平地泉行政区等晚熟春麦区作为小麦条銹菌越夏菌源基地的可能性最大。7.預測預报应該着重地面的發病檢查,根据冬前秋苗上發生情况和越冬率及越春率等3次發病檢查再参考气象預报,可以真作为短期或較长期的預测預报。

Serica orientalis Motschulsky is one of the most important insect pests of forest andnursery in the Northeast China. The host plants include 149 species in 45 families, 116genera. The adult infests the bud, leaf and flower, causing a considerable damage tothe plant. According to the results recorded in the laboratory and also observed in the fieldduring 1958 in the west of Liaoning, the development of one generation of this beetlelasts one year. The earliest appearance of the adult in the field is in early April,...

Serica orientalis Motschulsky is one of the most important insect pests of forest andnursery in the Northeast China. The host plants include 149 species in 45 families, 116genera. The adult infests the bud, leaf and flower, causing a considerable damage tothe plant. According to the results recorded in the laboratory and also observed in the fieldduring 1958 in the west of Liaoning, the development of one generation of this beetlelasts one year. The earliest appearance of the adult in the field is in early April, butthe season of adult abundance in the field is from late April to the end of May. Thenumber of the adult emerging from underground is influenced by the local weatherconditions, of which precipitation and relative humidity are the most important factors.During the period when the adults are abundant, much precipitation and higher relativehumidity are favorable for the appearance of adults to damage the plants. Egg laying of the females begins in the middle decade of May to the first decadeof August. The maximum oviposition rate (50%) occurred in the last decade of Mayto the first decade of June. But the eggs deposited later than July cannot develop topupae and only survive to the first or second instar larvae. The number of eggs laid by each female is largely influenced by the condition ofthe host plants, among which leaves of Ulmus pumild L. are most favorable for ovi-position. The larval stage possesses three instars. The length of the first instar is on theaverage 19.29 days, second instar 14.96 days and third instar 31.42 days. The verticaldistribution of the first and second instar larvae is in generally 15--25 cm. underground,which is influenced by soil temperature. The favorable soil temperature for the activityof larvae is between 22--25℃. The mature larvae enter into the ground and formoval-shaped pupual chamber. The adults, after emergence at the end of August, do not appear to the surface ofthe ground in the same year. Though sometimes a few adults may appear to the surfaceof the ground and take host plant leaf for their food in the same year, these adults can-not copulate and lay eggs. The adults overwinter about 40--60 cm. underground.

黑绒金龟子为防护林区主要害虫之一,在东北地区每年发生一代,以成虫在土中越冬,越冬成虫4月上旬出土,4月下旬到5月下旬为发生盛期,成虫的发生消长和一定温度有关外,更大程度和降雨量、湿度关系更为密切,在通常情况下其发生高峰和多雨季节相吻合。成虫食性复杂,不同饲料对其取食量、产卵量、产卵期有很大影响,对于榆树叶的取食量最大、产卵量最多、产卵期也最长,其余树种则次之。幼虫有3龄,平均第一龄期19.29天,第二龄期14.96天,第三龄期31.42天。22—25℃温度范围的土层适合于1—2龄幼虫的活动。老熟幼虫潜入深层化蛹,蛹期一般为半个月,羽化后成虫在土中有升降活动,当年一般不出土,少数个体虽有出土活动或取食但不交配产卵。黑绒金龟子由于不同发育阶段受到不同温度的影响,在土层中有不同深度的分布。部分成虫可以经二次越冬,但第二次越冬后的成虫是否能正常产卵繁殖还有待进一步研究。

 
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