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microorganisms
相关语句
  微生物
     The Molecular Ecological Effects of Long Term Organophosphate Pesticides Contamination on Soil Microorganisms
     有机磷农药长期污染土壤的微生物分子生态效应
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     Molecular Evolution of Some Important Human Pathogenic Microorganisms
     某些重要人类致病微生物分子进化的研究
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     Development and Application of a Real Time PCR Approach for Quantification of Rumen Microorganisms
     瘤胃微生物Real Time PCR定量方法的建立及其应用
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     1. Expression of the Human HDL Receptor (CLA-1) in Insect Sf9 Cells, Establishment and Application Research of CLA-1 Agonist Screening Model 2. Isolation and Relative Activities Research of Compounds Derived from Microorganisms
     一. 人高密度脂蛋白受体(CLA-1)在昆虫细胞的表达、激动剂筛选模型的建立及其应用研究 二. 微生物来源的化合物的分离及其相关活性研究
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     Studies on the Secondary Metabolites of Marine Microorganisms
     海洋微生物次级代谢产物的研究
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  微生物的
     The results showed that 2,4-DNT can be metabolized by the 9000-G supernatant of liver and intestinal microorganisms of carp,but the carp liver played a main role in the biotransformating process of 2,4-DNT.
     结果表明:鲤鱼肝S-9组分和肠道微生物对2,4-DNT具有代谢作用,在2,4-DNT的生物转化过程中,肝脏起了主要作用,但肠道微生物的作用也不容忽视.
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     The total number of microorganism in 2003(х104CFU/g dry soil)showed the largest quantity (1918.2)in WS1 and the smallest (1428.93)in WS4. Quantitative pattern of various microorganisms among different samples were compared.
     不同样地间,微生物数量的变化也有明显的差异,全年微生物的总数量(×104 CFU/g dry soil)WS1最多为1918.2, WS4最少为1428.9。
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     The cell number and activity of all thermophilic microorganisms in the formation water increased by 10 3 to 10 5 and 10 to 10 3 times respectively.
     地层水中嗜热微生物的数量和活性分别增加了 10 3 ~ 10 5倍和 10~ 10 3 倍。
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     Through adding high effective microorganisms of 30(mg/kg) in the pre-dem during the period of domestication and then 20(mg/kg) per month,the activity of microbe is intensified.
     在驯化期加入复合微生物菌剂30 mg/kg,驯化期后每月投加1次(20 mg/kg),强化微生物的活性.
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     The experimental results show that the growth of the microorganisms in the GBAC and IPBAC(UV_(254)) has close relationships with GBAC and IPBAC operational cycle.
     结果表明,GBAC和IPBAC中微生物的生长(UV254)与运行周期密切相关。
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  “microorganisms”译为未确定词的双语例句
     Study on the Key Problems in Cultivation of Recombinant Microorganisms
     基因工程菌培养若干重要问题的研究
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     STUDIES ON THE IN VITRO DETERMINATION OF ANTIBACTERIAL ACTION OF 17 ANTIMICROBIAL AGENTS AGAINST ANAEROBIC MICROORGANISMS
     17种抗菌药物对厌氧菌体外抗菌活性的测定
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     Studies on Quantitative Distribution and Flora of Microorganisms in Forest Soil of the Meihuashan Mountain Preserve in Fujian Province
     闽西梅花山自然保护区森林土壤微生物数量分布与区系的研究
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     THE EFFECT OF SENCOR ON GROWTH AND DEVELOPMENT OF SOYBEAN SYMBIOTIC NITROGEN FIXATION AND SOIL MICROORGANISMS
     赛克津(Sencor)对大豆生育、共生固氮及土壤微生物的影响
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     EFFECT OF TRIFLURALIN ON SYMBIOTIC NITROGEN FIXATION OF SOYBEAN AND SOIL MICROORGANISMS
     氟乐灵(Trifluralin)对大豆共生固氮及土壤微生物影响的研究
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  microorganisms
Stability analysis of equilibrium for microorganisms in continuous culture
      
It can be degraded by microorganisms such as mildew.
      
Every cell of CAPFM represents a single or specific number of penicillin producing microorganisms, and has various state.
      
Polyhydroxyalkanoates (PHAs) are the polymers of hydroxyalkanoates that accumulate as carbon/energy or reducing-power storage material in various microorganisms.
      
A variety of environmental factors such as temperature, CO2 and salinity could affect the biochemical contents in microorganisms.
      
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Owing to the deficiency of lysine in zein, the hydrolysate of this protein was used as the main source of amino acids in the preparation of the medium for microbiological estimation of lysine using Lcuconostoc mcsentcroides P-60. as the test ing microorganisms. Suitable quantities of tryptophane, arginine, cystine, glycine and serine were used to supplement the medium.The maximum rate of acid production by the microorganism in this medium is much higher than that in the medium used by Horn et al for the...

Owing to the deficiency of lysine in zein, the hydrolysate of this protein was used as the main source of amino acids in the preparation of the medium for microbiological estimation of lysine using Lcuconostoc mcsentcroides P-60. as the test ing microorganisms. Suitable quantities of tryptophane, arginine, cystine, glycine and serine were used to supplement the medium.The maximum rate of acid production by the microorganism in this medium is much higher than that in the medium used by Horn et al for the same purpose. The latter medium shows a rapid increase of acid production up to 80 μg lysine per innoculated test, while our new medium gives a continuous increase of acid production up to 120μg. Thus, the range in which the amino acid can be estimated in much extended.Parallel analysis was made on 25 food samples with our new medium as well as those published in the literature. In 11 cases, the agreement was within 10%; in 13 cases, the results obtained with' our new medium were about 10% higher; and in only 1 case, the new medium gave a lower result. These differences are not due to routine analytical error as repeated estimation gave similar results.

本文介绍微生物法测定赖氨酸所用的一种经济培养基。其大部分氨基酸系由玉米胶蛋白水解物供给。补充的氨基酸为精氨酸、甘氨酸、色氨酸、胱氨酸和丝氨酸。 实验结果证明,用玉米胶蛋白作培养基,以测定食物中赖氨酸的含量时,可获得较稳定的结果和满意的收回率。用本培养基测定一般食物中赖氨酸的含量与用其他培养基测定的结果符合,故本培养基可以用于食物中赖氨酸的测定。

(1) In the present report a simple type of bacterial mill is described. The chief advantages of this apparatus are high percentage of disintegration, short duration of grinding and repeatability of results. The apparatus is essentially composed of a ground glass cylinder made from suitable hard glass tubing, which is filled with ice and rotates mechanically in horizontal position in a closely fitting trough of hard porcelain. (Fig. 1 and 2). It allows with the help of an abrasive, such as glass powder, to break...

(1) In the present report a simple type of bacterial mill is described. The chief advantages of this apparatus are high percentage of disintegration, short duration of grinding and repeatability of results. The apparatus is essentially composed of a ground glass cylinder made from suitable hard glass tubing, which is filled with ice and rotates mechanically in horizontal position in a closely fitting trough of hard porcelain. (Fig. 1 and 2). It allows with the help of an abrasive, such as glass powder, to break bacteria (Escherichia coli) to an. extent of 99.99%. The fast and highly efficient breaking of the cells permits the preparation of particulate fractions possessing enzymatic activities, contaminated only with an inconsiderable amount of viable bacteria. Because the grinding process does not require any manual operation besides adding the bacteria abrasive mixture and removing the ground material, extracts of comparatively reproducible activity can be obtained from the same batch of microorganisms. Thus the succinic and malic oxidase activity in extracts from the same lot of bacteria did not differ by more than ±10% and ±16% from the average activities respectively. (2) The extracts obtained from the ground E. coli prepared with our mill were separated by differential centrifugation into a particulate (sedimenting between 5,000-20,000)×g during 2 hours) and a non-sedimentable fraction (supernatant after centrifugation at 20,000×g, for 2 hours). The former fraction was alble to oxidize succinate, L-lactate, and formate with a comparatively fast rate (Qo_2 (N) of 464, 1150, and, 126 respectively, taking the first 10 minute rates); L-matate and ethanol were oxidized only slowly while L-aspartate, L-glutamate, L-alanine, citrate and fumarate were practically not oxidized. All the mentioned substrates with the exception of citrate and alanine could be oxidized by the non-sedimentable fraction in absence of any acceptor dye. On mixing the two fractions three different kinds of results could be noted depending on the substrates used. (ⅰ) The rate of oxygen consumption of the mixture was approximately equal to the sum of the rates of the individual fractions. This was found for succinate, formate, and L-malate. (ⅱ) Mixing of the two fractions produced a markedly higher rate of the oxidation than what could be accounted for by the activities of individual ones. This is the case for fumarate, L-glutamate, L-aspartate, L-alanine, and ethanol. (ⅲ) The combination of the two fractions lowered the rate of oxygen uptake. This was noted for L-lactate.

本文報告了一種簡便高效的細菌磨,其主要構成部分包括一段横置的磨沙硬質滾筒和凹面瓷座。用5,000×g轉速,20分鐘離心收集的大腸桿菌漿作試驗。這種菌漿含水量約為乾菌重的5倍。加入1.3—1.5倍重的玻璃粉(顆粒小於3μ),混合均匀,研磨20—30秒,細菌裂碎率保證在99.99%以上。 將研磨所得混合物懸浮於磷酸鹽緩衝劑中,離心分離得到全提取液。全提取液再以20,000×g轉速,2小時離心分離,將酶劑分為澄清提取液和從碎菌沉澱製成的碎菌懸浮液兩部分。後者所殘留的活菌的氮約佔全氮的10~(-3)—10~(-4)%。利用同一批培養出來的細菌各次研磨製得的酶劑,其酶活力的可重複性程度很高,以琥珀酸氧化酶系的活力來說,各次平均離差範圍僅±10%。不需要加任何輔酶輔基,這兩部分酶劑都能够直接利用空氣中的氧來氧化琥珀酸、L-蘋果酸、L-乳酸、甲酸。澄清提取液部分還可以氧化L-谷氨酸、L-門冬氨酸、延胡索酸和乙醇,並且當它和碎菌部分酶劑混合時,除琥珀酸、甲酸和L-乳酸外對其他底質的氧化活力都大為提高。

The present report deals with the results of some studies on the longevity of the soft-rot organism, Erwinia aroideae (Towns.) Holland in soil. It is found that when the bacteria are added into a mass of non-sterile field soil in a test-tube and incubated at 28℃, they can not live longer than 14 days. This result is somewhat contradictory to those of Patel, but agrees with those of Gorlenko and Voronkeviz. A study of the number of microorganisms which, are able to be plated out in beef bouillon peptone...

The present report deals with the results of some studies on the longevity of the soft-rot organism, Erwinia aroideae (Towns.) Holland in soil. It is found that when the bacteria are added into a mass of non-sterile field soil in a test-tube and incubated at 28℃, they can not live longer than 14 days. This result is somewhat contradictory to those of Patel, but agrees with those of Gorlenko and Voronkeviz. A study of the number of microorganisms which, are able to be plated out in beef bouillon peptone agar reveals that when a known number of soft-rot bacteria is added into a soil sample, the total number of the indigenous microorganisms is increased, while the number of the introduced bacteria is rapidly decreased. After 72 hours, the total number of the indigenous microorganisms in the soil sample begins to decrease and finally reaches its original level. It is inferred that following the addition of the soft-rot organism into a soil sample, a biological equilibrium is broken and the indigenous microorganisms are stimulated to multiply rapidly. After a brief period of such an unusual multiplication of the indigenous microorganisms, the invaders are suppressed and a new equilibrium is finally established. Henceforth the number level of the indigenous microorganisms in the soil sample returns to the orginal. When the soft-rot bacteria are introduced into the soil in soil tanks regulated at different soil temperatures (and in each tank two plants of the Chinese cabbage are planted), the introduced bacteria live 11 days at 35℃, 21 days at 10℃ and 7 days at 20℃. Possibly a soil temperature at 20℃ might be close to the optimal for the activities of some antagonists of the soft-rot bacteria. When a soil sample is fertilized with the "de-oiled soybean-seed-cake" or with the "dried night soil", the elimination of the intruding bacteria is accelerated. In the plot where the de-oiled soybeanseed-cake" is applied, the soft-rot organism disappears within 24 hours, whereas in the plot of the "dried night soil", the intruding bacteria disappear within 5 days. The soft-rot bacteria in an autoclaved field soil sample live 96 days. When a quantity of manure or compost is added to the soil sample and chert autoclaved', the soft-rot bacteria introduced at such a condition live longer than 180 days. Evidently the added manure or compost in sterile condition serves as food material for the soft-rot organism.

白菜軟腐細菌(Erwinia aroideae)在不灭菌的土壤中可以存活11天至14天。土壤中的微生物总数(指可以在牛肉汁(月柬)培养基上发育的微生物)因軟腐細菌的加入而起剧烈的波动。当軟腐細菌进入土壤中后24小时,軟腐細菌的数量銳减而土壤中的其他微生物数量上昇,以后亦逐漸递減。当軟腐細菌在土壤中消失时,土壤微生物的数量又趋于平稳。軟腐細菌在栽有白菜的土壤中,土壤温度影响其存活期:土温在35℃时可以存活11天,在10℃可以存活21天,在20℃时可以活7天。豆餅及大粪干施入土壤中时可以促进軟腐細菌的消灭。施豆餅区(豆餅微粒与土壤拌匀)在24小时中软腐細菌即已消灭,而在施大粪干区軟腐細菌可以存活5天。軟腐細菌在灭菌的土壤中可以活96天,如果施以灭菌的堆肥或厩肥时,可以延长至180天以上。

 
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