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  撑杆
     Computer aided design for stay bar of piling ship
     计算机辅助打桩船撑杆设计
短句来源
     Based on a general cognition of the stress characteristic of the pre-stress reinforced steel arch beam, a method which decrease the steel arch beam bending-moment and deformation by adding proper stay bars and cables on the axial plane according to it's stress characteristic is applied to single-layer latticed cylindrical shells.
     在对预应力加强型钢拱结构的受力特性有了比较全面的了解之后,本文把这种依据钢拱结构的受力特征在其适当位置增加撑杆和预应力索以约束其弯矩和变形从而改善结构受力特性的思想应用于单层柱面网壳,形成了一种新的预应力空间结构体系,本文把它称为预应力加强型柱面网壳。
短句来源
     By using the finite element analysis software "ANSYS",this paper analyzes mechanical behavior of a new reinforced steel arch beam-a structure where proper stay bars and prestressed cables are arranged along the axial plane of the steel arch beam,and analyzes the optimization of improving the internal force characteristics of the structure when the relative length of two sides' stay bars of the reinforced steel arch beam is changed so as to show their variation regularities of stress and deformation under vertical loads.
     通过有限元软件ANSYS,本文计算分析了在钢拱梁轴线平面内增加适当的撑杆和预应力索而形成的新型加强型钢拱梁结构的受力性能,并且分析了改变加强型钢拱梁两侧撑杆的相对长度对改善结构受力性能所起到的优化作用,显示了两个加强型钢拱梁在不同竖向荷载作用下结构应力和位移的变化规律。
短句来源
     For the sake of making the steel arch structure legerity and adapt to large span, the scholar of every country put forward many projects which improve the steel arch structure from increase the cables, but most of the research is focused on the cable -arch structure which no stay bar, the other improved projects are researched little.
     为了使钢拱结构既轻巧又适应于大跨度,各国学者提出了很多通过增加拉索对钢拱结构改进的方案,但研究绝大部分集中在索-拱结构(无撑杆)上,对其它改进方案研究甚少。
短句来源
     After loading the stay cable, the transverse stresses in the top plate of the box beam are less than 1MPa, the longitudinal compressive stresses in the top plate of the box beam are uniformly distributed basically except in the loading zone of transverse pre-stress, the struts present only compressive stress with loading transverse pre-stress in the all section of struts.
     施加斜索力后,箱梁顶板的横向拉应力均小于1MPa,除横向预应力作用区域外,箱梁顶板的纵向应力为均匀分布的压应力,若在所有撑杆截面施加横向预应力,则撑杆只出现压应力。
短句来源
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  拉线
     Stress Analysis Of Single-Column Crossing Pole With Three Layers Of Stay Wire
     三层拉线单柱式跨越架的受力分析
短句来源
     The stress of 49 5m high single column metal structured pole with three layers of stay wire is analyzed according to three moment equation The comparison of calculated stress of stay wire and the pressure under the main column with values got from the static load test proves the feasibility of three moment equation
     针对高度为 49.5 m带三层拉线的单柱式金属结构跨越架按三弯矩方程进行了受力分析 ,求得的拉线受力及主柱下压力后与静载试验的实测值相比较 ,说明三弯矩方程的可行性。
短句来源
  “stay”译为未确定词的双语例句
     CHARACTERIZATION AND APPLICATION OF STAY ORBIT
     逗留轨道的特性和应用
短句来源
     Static Nonlinear Analysis of Cable-Stayed Bridge and the Adjustment of Stay Cable Forces
     斜拉桥静力非线性分析及其索力调整
短句来源
     A Computer Anided Design Method for Stay Vane and Guide Vane of Water Turbine
     水轮机固定导叶和活动导叶的一种计算机辅助设计方法
短句来源
     Shorten the Average Hospital Stay through Improving Quality and Efficiency
     缩短平均住院日 向质量和效率要效益
短句来源
     Stay Cable Rain Vibration and Countermeasures
     斜拉索的雨振及其制振措施
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  stay
The results demonstrated that the superconducting properties of these thick films, prepared by HPCVD, stay almost unaffected even with the films bent to a large degree with a curvature of 0.5 mm.
      
It is found that GI-bridging will firstly increase with the development of crack and then stay constant once the initial crack tip opening displacement reaches the characteristic crack opening displacement w0.
      
The global stability of a structure, the stiffness of its main girder and concrete tower, and the variation of the forces of its stay cables are key issues to the safety assessment of an in-service cable-stayed bridge.
      
Obtained were a model relating the backbone parameters in the form of power-series distribution, criteria for estimation of the development instability, and criteria for the system to stay in the domains of weak chaos in the fractal dimension.
      
The optimal orbit of a high-elliptic satellite of the Earth, which provides for a maximal duration of stay of the satellite sighting line within the directional pattern of an antenna motionlessly installed on the Earth's surface, is determined.
      
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The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting...

The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting the soil but most of them lived in the garden soil,mound soil and. clay landside. Liocola brevitarsis has only one generation per year at Lientang. The adultperiod was from June to September and some of them lengthened out mid-Octo-ber. Adults flied out at day time and sucked the different part of hosts: as theflesh of fruit, the juice of tree and the corn ear, once in a few days. Larvaeselected the soils more strictly. They concentrated in compost and rich humussoil. Controlling methods: (1) To spray 0.5%γ666 or 25% DDT emulsion (250water:1 emulsion) once to the host leaves was effective in protecting against theadults of Adoretus till its last period of activity. (2) To shake the tree to makethe adults of Adoretus fall down and then unroll a piece of white cloth underthe tree to gather the adults. (3) To make a bamboo cylinder, 12-16 in. long,which was filled with rotten fruits and nectar, and trap all the adults of Liocolain this cylinder. (4) To clean out the compost before June in order to kill mostof the larvae and pupae of Liocola.

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅目,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,筒高12—1...

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅目,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,筒高12—16寸,筒内盛腐熟果子及蜜,贴靠枝杆悬挂,能将圆内所有成虫,全部诱入筒中。此外,前一种成虫,并可利用外出?

Results of planting large amount of slightly but evidently diseased tubers undernatural field conditions obtained by inoculation during the harvesting time of theprevious year indicate that successive underground secondary infections from plantto plant of the same hill constitute the main feature of the process of formation ofprimary foci of subsequent aerial spread of the late blight in a potato plantation Inspection at the time of emergence revealed that all the sprouts found at theperiphery of and directly...

Results of planting large amount of slightly but evidently diseased tubers undernatural field conditions obtained by inoculation during the harvesting time of theprevious year indicate that successive underground secondary infections from plantto plant of the same hill constitute the main feature of the process of formation ofprimary foci of subsequent aerial spread of the late blight in a potato plantation Inspection at the time of emergence revealed that all the sprouts found at theperiphery of and directly connected with the tuber lesions were blackened and diedunderground.Among the sprouts which were about to emerge,those standing closeto the dead sprouts were also discolored at their basal portion,while those furtherapart still entirely healthy.Dark brown extended lesions can sometimes be seen onthe stems of the weak potato seedlings,but sporangial covering was present onlyon their lower underground portions.The stem lesions did not always reach theextremity of the stem base.Even if they did,they might not be directly connectedwith the tuber lesions. Among a total of 789 hills planted with disesed tubers in Peking and Salintzein 1956,only 9 plants with stem lesions were found,of which 5 wilted and diedrapidly,1 with its lesion healed up.The remainder stayed long enough for thefungus to sporulate on their above-ground portion of the lesions and cause thefoliage infection of the same plant and adjacent plants at the onset of a favorable weather. It is believed that the significance of the weak diseased seedlings with basalstem lesions appeared early in the season consists chiefly in the capacity of givingrise to sporangia which may again infect the underground portion of the stem of ahither to healthy plant.On the stem of a larger plant,the fungous mycelium canonly exist in the cortical tissue spreading upward and downward from the infectioncourt to cause a dark brown stripe of irregular width.Stripe lesions of this typeapparently do nto impair the normal development of the plant,but their above-ground portions serve as a persistent potential source of aerial infection. Observations outlined above together with the results of an experiment ofseedling top inoculations under field conditions lead us to postutate that delayedaerial infection is due on the one hand to the fragility of the diseased seedlingsunder natural field conditions and on the other to the lack of a suitable combinationof moisture and temperature required for sporulation and infection as the springweather is characterized by very low night temperature. It is anticipated that local forcasting service may find it helpful to plant diseasedtubers in a proper field plot for the observation on the development.of the foci ofpotato late blight.

在河北省沙岭子农业試驗站和北京农業大学試驗农場1955和1956两年所进行的病薯栽培試驗,表示土中的重复侵染是中心病株形成过程的基本特征。当挖掘出土初期的病薯时,發現直接与种薯病斑相連的幼芽都在出土之前变黑死去,剛剛露土的幼芽中,靠近已死幼芽的莖基也开始部分变色,距离較远的则仍然健全。在已出土的衰弱幼苗上常常可以看到露在地面的莖基部分也显出暗褐色的病斑,但是沒有孢子囊,而該病斑的地下部分则披有一層孢子囊趺缜o斑并不全是达到莖基的終点,而达到莖基終点的,也不与种薯病斑相連接。1956年在两地播种的789穴病薯中發現了9株这种病苗,其中5株迅速萎蔫而枯死,1株發生莖斑痊愈現象。只有少数出現較晚而維持較长久的弱苗遇到适合气候时能够在地面上形成孢子囊傳染到本株或同穴中其他植株的叶片缙诓∶绲闹饕饔孟匀辉谟谛纬傻叵骆咦幽乙砸鹜ㄖ姓诔沙さ慕≈昵o基的感染。在成株莖部上病菌只能在皮层扩展引致条紋状的暗褐色病斑。这种病斑不严重影响植株的生长發育,但是在露出地面后随时可以形成孢子囊成为空中傳染的經常潜在来源。出土病苗的观察以及幼苗地上部接种試驗結果說明病害延迟流行的原因,一方面是受病的幼苗容易枯死,另一方面是在早期气...

在河北省沙岭子农业試驗站和北京农業大学試驗农場1955和1956两年所进行的病薯栽培試驗,表示土中的重复侵染是中心病株形成过程的基本特征。当挖掘出土初期的病薯时,發現直接与种薯病斑相連的幼芽都在出土之前变黑死去,剛剛露土的幼芽中,靠近已死幼芽的莖基也开始部分变色,距离較远的则仍然健全。在已出土的衰弱幼苗上常常可以看到露在地面的莖基部分也显出暗褐色的病斑,但是沒有孢子囊,而該病斑的地下部分则披有一層孢子囊趺缜o斑并不全是达到莖基的終点,而达到莖基終点的,也不与种薯病斑相連接。1956年在两地播种的789穴病薯中發現了9株这种病苗,其中5株迅速萎蔫而枯死,1株發生莖斑痊愈現象。只有少数出現較晚而維持較长久的弱苗遇到适合气候时能够在地面上形成孢子囊傳染到本株或同穴中其他植株的叶片缙诓∶绲闹饕饔孟匀辉谟谛纬傻叵骆咦幽乙砸鹜ㄖ姓诔沙さ慕≈昵o基的感染。在成株莖部上病菌只能在皮层扩展引致条紋状的暗褐色病斑。这种病斑不严重影响植株的生长發育,但是在露出地面后随时可以形成孢子囊成为空中傳染的經常潜在来源。出土病苗的观察以及幼苗地上部接种試驗結果說明病害延迟流行的原因,一方面是受病的幼苗容易枯死,另一方面是在早期气候下不能得到形成孢子和再侵染所需要的温湿度的配合。建議在各地預测站选擇适当地点播种病薯,以便观察病害中心的發展情况,作为預測預报的根据。

Tea-bagworm is an important pest of tea-plant in some tea growing districts in Anhwei, Chekiang, Fukien, Taiwan, and Hunan Provinces. The larvae infest the leaf, bark and husk of fruit, causing a considerable damage to the tea plants. The present paper deals with the general morphology, biological investigations and control measures of the pest. Both laboratory and field trials were conducted at the Chekiang Agriculture College and at Lung-thing (龙井) Tea Plantation, Hanchow, during the years 1953-1956. The tea-bagworm...

Tea-bagworm is an important pest of tea-plant in some tea growing districts in Anhwei, Chekiang, Fukien, Taiwan, and Hunan Provinces. The larvae infest the leaf, bark and husk of fruit, causing a considerable damage to the tea plants. The present paper deals with the general morphology, biological investigations and control measures of the pest. Both laboratory and field trials were conducted at the Chekiang Agriculture College and at Lung-thing (龙井) Tea Plantation, Hanchow, during the years 1953-1956. The tea-bagworm gives two generation annually and over-winters in larval stages. The male moth is winged; the female is wingless, concealing itself and depositing eggs in the case. After hatching, the larva leaves the case, then weaving a new conical shaped case with a few fragments of tea leaves. Under sunshine the larvae usually stay on the underside of the tea leaves and among the tea bushes. There have been found hymenopterous larval parasites, of which five are Ichneumonids and one is Chalcid. These parasites usually cheek the outbreak of the second brood of the pest. Basing on results of experiments performed, the following measures of control are suggested: 1. Spraying with 6% wettable 666 at the rate of 1:200-400 dilution after the picking season, gives promising results. There appeared to be no disagreeable odor or taste of 666 in the leaves sprouted out from sprayed buds. 2. Spraying with Derris and Pyrethium, during the picling season. 3. Hand-picking the larval cases and hanging cases to potect the hymenopterous parasites.

五、摘要 1.茶小簑蛾是茶树上的一种主要害虫,我国台灣、福建、浙江、安徽、湖南等茶区均常發生。幼虫食害茶叢叶片、小枝皮層和果皮,因此茶叶的常年損失达10—50%。 2.該虫在杭州年生二代,3月中旬到5月下旬和6月中旬到8月中旬为害茶叢,3—5月間最为严重;以3龄或4龄幼虫在茶叢上越多,賴幼虫爬行,吐絲和人工移植茶叢或茶苗傳播,在茶园中多系局部为害,扩散力不大。 3.成虫雌雄異态,雄蛾日間活动,雌虫似蛆狀,終生藏于囊內,卵产在护囊内。幼虫孵化离开母囊后即能制囊以藏身,囊外附有茶叶和小枝皮的碎片;活动时背負护囊迁移和取食,日光照射时幼虫躲在叶背和茶叢間。 4.在采茶結束和茶芽休眠时噴用6%可湿性666的200—400倍液,基本上能抑制此虫發生;采茶时噴用除虫菊或魚藤肥皂液;噴用时药液約需比一般增加一倍左右。此外必須配合人工捕捉虫囊和保护寄生蜂。最好在5月到6月上旬間和7月中旬到8月中旬間采摘早期挂起的虫囊。

 
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