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花园
相关语句
  the garden
     Fresh"green",harmonious"circle" ——the artistic charm of The Garden by Andrew Marvell
     清新的“绿” 和谐的“圆”——安德鲁·马维尔《花园》的艺术魅力
短句来源
     In the English Renaissance,Andrew Marvell,a metaphysical poet,in his poem The Garden ,created a garden which is sweet,natural and harmonious.
     英国文艺复兴时期诗人安德鲁·马维尔 ,作为一位玄学派诗人 ,在《花园》一诗中创造了一个甜美、自然、和谐的“花园”。
短句来源
  相似匹配句对
     SHang Hai Garden
     上海花园
短句来源
     Garden in Heaven
     天堂的花园
短句来源
     Guangzhou Olympic Garden
     案例:广州奥林匹克花园
短句来源
     Beijing Olympic Garden
     案例:北京奥林匹克花园
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  the garden
These reactions can be accelerated by hormones, such as insulin, by mechanical factors, such as the "garden-hose effect", heart rate, and perhaps ventricular pressure development, and by oxygen deprivation.
      
Influence of incubation temperature and substrate on eggs and embryos of the garden lizard, Calotes versicolor (Daud.)
      
A Serpent in the Garden: A Response to Harris Lenowitz
      
The effect of a chemical deterrent, released from the frass of caterpillars of the garden pebble moth, on cabbage root fly ovipo
      
The cabbage root fly, Delia radicum (L.), was deterred from laying eggs on cauliflower plants that had been sprayed with a suspension of the frass of caterpillars of the garden pebble moth, Evergestis forficalis (L.).
      
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The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic plants of 19...

The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic plants of 19 families. Beside the rape plant, peanut, soybean, and sunflower, the majority of the hosts are vegetables and herbaceous ornamental plants. In the host range, there are 13 species not hitherto reported; however, there are also 5 species of familiar plants which have been listed as hosts in other countries are not affected in China. No definite period of dormancy appeared to be necessary for the production of apothecia, but the temperaure reguirement for the sclerotial germination was found very narrow. They germinated best in moderately cool temperature (around 15℃.) in moist sand., The sclerotia raising from single spore cultures germinated very slowly and meagrely, while those from the parent mass culture germinated rather quickly and abundantly, a phenomenon pointing to the facultative heterothallic nature of the fungus. The ascospores have been found to germinate under a wide range of conditions. They germinated quite well on dry slide under high relative humidity. It may thus be justified to assume that the ascospores can be carried in a viable condition to a considerable distance by wind. Precentages of their germination under a temperature range of 5—30℃. exceeded 50% in less than 24 hours, being highest at 5—10℃. The pH range for mycelial growth was found to be pH 3—9, with an optimum around pH 5—8. High relative humidity (over 85%) and a supply of pectinase from diseased tissues were necessary for its infection. Flower petals of the rape plant have been found most susceptible to attack by the ascospores, while sound leaves were resistant to attack unless they had been chilled. A sudden drop of temperature, poor drainage, and especially lodging of the rape plants during their blooming stage have been observed to be predisposing under natural conditions. Ordinary, there are two crops of apothecia in a year, one in the Autumn and the other in the next Spring, the second crop should be considered as the major one. A rotation of rice with the rape plant and a big scale control campaign in vast area will materially reduce the source of infection, and thereby decrease incidence of the disease. Since the infection is dependent chiefly upon the number of sclerotia that will persist in the soil and the production of apothecia in the blooming period, epedemics may be forecasted on the basis of weather conditions prevailing at various times of the year. The facts that abundant Summer rainfall promotes decay of the sclerotia, and abundant rainfall in the the Autumn increases their number, may be considered as criteria for long term forecasting. Abundant rainfall in the early Spring and cold wind during the blooming period which promotes the germination of the sclerotia, the infection of either the ascospores or the mycelium, and the lodging and susceptibility of the host, may be based for short term forecasting.

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。...

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。它在接近饱和的相对湿度中,并不需要一层水膜也能发芽。因此,推论它有一定距离的气流传播可能性。菌絲的要求介于两者之间,它对酸硷的适应范围很广(pH3—9,最适为pH5—8)。它对温度的要求和对子囊孢子发芽的相同。其侵染及生长最主要的条件为高湿度(相对湿度高于85%)及足够的果胶酵素。4.油菜易感的阶段为花期。花冠最容易感染,衰老的叶片及受冻后的嫩叶也容易感病。通过这些桥梁,进而侵染莖稈。春季的寒流,后期的漬水和倒伏,造成发病的小气候;鼓励子囊孢子的发芽与侵入和菌絲的侵染与发展。因此,是此病猖獗的关键。5.子囊孢子是此病主要的而且是首次侵染源。菌核每年产生两次子囊盘,一次在深秋,是次要的;一次在早春,是主要的。菌核的潛伏埸所为:本田、种子间、花园、菜圃、打谷埸及堆肥中。水旱轮作可以消灭菌核;大面积联防可以减少侵染源。6.夏季的雨量丰富,使田间的菌核数下降;相反,深秋的雨量丰富,使菌核数增加;因此,前一年的夏季和秋季的雨量,可以用作长期测报的根据。本年早春的雨量丰富,促进菌核的发芽;花期的寒潮,后期田间渍水,植株倒伏,都使寄主易感,并鼓励子囊孢子的发芽侵入及菌絲的侵染与发展,是造成当年猖獗的主要原因,因此可以用为短期测报的依据。

~~

黄河流域的自然地理条件,使得进入下游的泥沙量特别高,河床不断堆积抬高,而且坡陡流急,河床变形迅速.洪峰的猛涨猛落,洪汛期和枯水期流量的相差悬殊,以及洪峰与沙峰的不相应性,也使下游河床时时刻刻都在进行调整和改变.这一些流域条件,决定了黄河下游的游盪性河型.只有到了高村以下,由于两岸的地质条件和南北大堤限制了河道的横向发展,河流才逐步向弯曲的外形过渡.黄河下游虽然是一条堆积性的河流,但是在局部地区,在个别时段中,也可能出现相当普遍的冲刷.例如1958年下游的洪水超过了有水文记载以来的记录,在特大洪峰中,三门峡与秦厂之间的区间来水占四分之三左右,这一部分来水含沙量比较低,对干流有稀释作用.经过一个汛期,只花园口三十五公里的河段内,就从主槽中冲去了泥沙2,700万方,从京广铁桥到夹河滩长约100公里的河段内,1958年汛后的谿线比1953年平均还要降低1.2米,冲刷的范围估计已发展到高村以下.在河床普遍刷深的过程中,局部地区冲深达五、六米甚至十几米的,更是屡见不鲜.水文资料的分析结果指出:在上游来沙量偏大,河床普遍淤高的情况下,河势的变化要强烈得多,而在河床普遍刷深的同时,河流外形却变得更为规则,主槽的摆...

黄河流域的自然地理条件,使得进入下游的泥沙量特别高,河床不断堆积抬高,而且坡陡流急,河床变形迅速.洪峰的猛涨猛落,洪汛期和枯水期流量的相差悬殊,以及洪峰与沙峰的不相应性,也使下游河床时时刻刻都在进行调整和改变.这一些流域条件,决定了黄河下游的游盪性河型.只有到了高村以下,由于两岸的地质条件和南北大堤限制了河道的横向发展,河流才逐步向弯曲的外形过渡.黄河下游虽然是一条堆积性的河流,但是在局部地区,在个别时段中,也可能出现相当普遍的冲刷.例如1958年下游的洪水超过了有水文记载以来的记录,在特大洪峰中,三门峡与秦厂之间的区间来水占四分之三左右,这一部分来水含沙量比较低,对干流有稀释作用.经过一个汛期,只花园口三十五公里的河段内,就从主槽中冲去了泥沙2,700万方,从京广铁桥到夹河滩长约100公里的河段内,1958年汛后的谿线比1953年平均还要降低1.2米,冲刷的范围估计已发展到高村以下.在河床普遍刷深的过程中,局部地区冲深达五、六米甚至十几米的,更是屡见不鲜.水文资料的分析结果指出:在上游来沙量偏大,河床普遍淤高的情况下,河势的变化要强烈得多,而在河床普遍刷深的同时,河流外形却变得更为规则,主槽的摆动范围也有所压缩.模型试验的结果,初步指出河床在横向的变化与下泄流量的大小有很大的关系.如果下泄的清水比下游河槽的平滩流量小得多,河床基本上以下切为主,两岸出现台地.在下切的同时,水流有向弯曲的外形发展的趋势,随着弯顶的下移,河槽逐渐展宽.如果下泄的水满槽漫流,一方面由于流量大,水流冲刷力强,河床下切得更快,而另一方面,水流漫滩以后,对滩岸的破坏力加大,容易冲出串沟,导致主槽较大的摆动,河床开始恢复游盪的特性.这时的游盪强度虽然比以前要弱得多,但是因为下泄的水含沙量不足,滩岸淘刷以后,不能在旁的地方落淤还滩,河身因此迅速展宽.更往下游去,来自上游的清水已经自河床中取得足够的泥沙的补给,含沙量恢复饱和,这时河床不再发生冲刷,横向的变化也和过去没有太大的不同.在壅水段中,泥沙大量停积,河床继续保持游盪的特性,而且河身格外宽浅,水流外形显得更为散乱.由于泥沙在水库进口段的淤积,并使回水迅速向上游发展.河床在纵向上的冲淤幅度可以通过河床变形计算加以预估.按照黄委会所提出的六枢纽方案,将来在各级枢纽之间,都存在着自由段、过渡段和壅水段.自由段的冲刷是由上而下逐步发展的,在同一个地区,冲刷的速率因时递减.泥沙不再运动、全线达到平衡所需要的时间历时很久.河床达到平衡以后,自由段的最大冲刷深度在桃花峪下游为10米左右,在其他各个梯级的下游则达到20—30米.这样大的普遍冲刷,再加上坝址附近的局部冲刷,会在枢纽工程的修建中引起一定的困难.黄河下游将来的泥沙主要来自河床的冲刷,非造床质所占的百分比较小,在达到平衡以前,全部沙量约在70亿公方左右,这些泥沙一部分淤在壅水段,一部分引入灌溉渠道.壅水段回水的向上游发展,在河南境内的几个梯级比山东更为显著.下游河道的整治可分近期及远期两个时期,从三门峡水库开始拦洪到桃花峪水库建成以前属于近期,为期约4—5年,桃花峪水库及下游各级枢纽建成以后属于远期.近期的河道整治以防洪为主.三门峡水库建成以后,三秦区间还可以发生相当大的洪水.从目前情况看,三秦间发生千年一遇洪水时还可以采取措施通过河道排泄入海不开放滞洪区分洪滞洪.将来下游主槽发生摆动的可能性是存在的,特别是在伊洛沁河口以下由于区间洪水尚未得到控制,水流有漫摊的机会,这就更有可能引起河槽的摆动和滩地的冲失.滩地的坍塌和河槽的展宽会使远期的整治工程失去前进的阵地,而且由此引起的河势变化可能会在束窄段的上下游造成新险.因此,近期的整治工程应以束窄游盪区、固定河势、保护滩地为主要内容.今冬明春应继续修筑生产堤,保护滩区农业生产,并束水固槽.黄河上现有节点应加改善,自两岸加固,使其成为真正固定河势的控制段,现有老滩需加维护.滩面的岐流串沟应加堵塞,并在滩地大量造林.关于植树在河道整治中的应用,应尽量利用永定河上的成功经验.整治的重点应放在花园口至高村河段.远期的河道整治应以促使河道向有利方向发展,最后达到全线通航为主.自由段的整治和前期工程并无太大的出入.在枢纽修建的同时,应把壅水区的外形做成枣核形,使泥沙能在库区内均匀落淤,回水不至过份向上游发展.泄洪闸的闸坎应尽量放低,闸门不宜过小,以便在洪汛期中提闸降低水位,清洗库区泥沙.在河南境内的河道坡降达到山东段现有坡降(万分之1.2)以后,就可以进一步束窄河身,考虑全线通航.在治导线的规划和航运断面的设计上,应以山东下游现有的典型弯道作为蓝本,弯道的浅滩段并自两面束窄,使其具有和深潭同样的航深.初步设计的结果,指出将来黄河下游在河道初束窄时,可以通行100—500吨的船只.随着河道的继续下切和坡降的继续变平,航运条件会进一步有所改善.

In screening of antitumor antibiotics a strain of streptomyces was isolated from garden soil in Shanghai, which produces an antibiotic belonging to the phleomycinbleomycin family. This strain has been identified as Streptomyces lilacinoverticillatus 1588 Yen et Zhang. The antibiotic produced by this strain was named Antibiotic 1588.In this paper, the biological characteristics of this strain and the selection of the fermentation media by the method of multiple-factor orthogonal experimental design were reported.An...

In screening of antitumor antibiotics a strain of streptomyces was isolated from garden soil in Shanghai, which produces an antibiotic belonging to the phleomycinbleomycin family. This strain has been identified as Streptomyces lilacinoverticillatus 1588 Yen et Zhang. The antibiotic produced by this strain was named Antibiotic 1588.In this paper, the biological characteristics of this strain and the selection of the fermentation media by the method of multiple-factor orthogonal experimental design were reported.An isolation-purification procedure for Antibiotic 1588 using strong acidic cation exchange resin, porous resin and active aluminum oxide chromatography was established.In the bioassay, Bacillus subtilis A. S. 1.311-8 was used as the testing bacteria. This strain was insensitive to other antibiotics exsisting in the culture broth besides Antibiotic 1588.

我们用诱导前噬菌体的方法在上海的花园土壤中筛选到一株丁香轮丝链霉菌1588。本文报道该菌的生物学特征及其产生的抗生素1588的发酵、分离及纯化的研究结果。文中还介绍了一种适于对酸碱不稳定的腐草霉素—博莱霉素类抗生素的提取流程,也介绍了用一株对同时存在于抗生素1588发酵液中的其它抗生素不敏感的枯草杆菌进行生物测定的方法。

 
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