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小龙虾
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  crayfish
     Study on the Comprehensive Utilization of Freshwater Crayfish
     淡水小龙虾的综合利用
短句来源
     Comprehensive Exploitation and Utilization of Freshwater crayfish
     淡水小龙虾资源的综合利用及其开发价值
短句来源
     Modeling the Sterilization of Staphylococcus aureus in Crayfish. Germ Falls by UHP
     淡水小龙虾中金黄色葡萄球菌超高压杀菌模型建立
短句来源
     This article briefly summarized that the resources condition,the cultivation prospect and the industrialization development of comprshensive utilization for the freshwater crayfish.
     综述了淡水小龙虾的资源状况、养殖前景及其综合利用的产业化开发。
短句来源
     We used the ultra high pressure (UHP) to process the crayfish,recurring to the Box- Behnken experiment method to design and investigating the effect of the UHP cooperated with different temperature and time on the deadly ratio of Staphylococcus aureus,the model of which sterilized by UHP was built,the authors chose SPSS to analyze the experimental data,the relative coefficient of actual value to the predicted is 0.9912.
     本文选用超高压技术对淡水小龙虾进行杀菌处理。 借助于Box-Behnken试验设计方法,考察了不同温度和保压时间协同超高压对金黄色葡萄球菌的作用效果,建立了金黄色葡萄球菌超高压杀菌模型,并利用SPSS对数据进行相关性分析、验证,得到实测值与预测值的相关系数为0.9912。
短句来源
  “小龙虾”译为未确定词的双语例句
     Steam Boiling is the Effective Method in Controlling Microorganism in Frozen Boiled Crawfish
     蒸煮是控制冻煮小龙虾微生物的有效方法
短句来源
     Risk Analysis Study of Exported Crawfish Products
     出口淡水小龙虾产品风险分析研究
短句来源
     Study on risk management measures of biological hazards existing in exported crawfish products
     出口淡水小龙虾产品生物危害风险管理措施研究
短句来源
     HAZARD ANALYSIS AND ITS MEASURES OF PREVENTION AND CONTROL OF CHLORAMPHENICOL IN CRAWFISH
     淡水小龙虾氯霉素残留的危害分析和预防控制措施
短句来源
     In order to provide scientific basis for inspection of exported crawfish, the author, according to risk analysis principle of WHO/CAC, collects and analyzes the data of exported crawfish products inspection and the Residue Monitoring Plan on Animal and Animal Originated Foods of China to conduct a risk assessment on biological and chemical hazard of exported crawfish products.
     为了给淡水小龙虾出口检验工作提供科学的依据,作者运用世界卫生组织和食品卫生法典组织(WHO/CAC)的风险分析原理,收集和分析出口小龙虾检验相关数据和国家出口动物源性食品残留监控数据,对出口淡水小龙虾产品进行了生物危害和化学危害的风险评估,得出以下结果:
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  相似匹配句对
     Study on the Comprehensive Utilization of Freshwater Crayfish
     淡水小龙虾的综合利用
短句来源
     Research on the reliability that "Crayfishes" "vomit" the heavy metals
     “小龙虾”“吐”重金属真实性的研究
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  crayfish
New Approaches to Exploitation and Conservation of Crayfish Populations
      
The historical analysis of shellfishing for crayfish in Belarus demonstrates the inefficiency of the existing measures for their protection.
      
The proposed approaches to the conservation and propagation of crayfish are based on intensification of the shellfishery connected with the necessity of taking measures to promote crayfish dispersal.
      
In experiments performed in aquariums, the daily consumption of Chara vulgaris alga by crayfish (Astacus astacus L.) has been determined.
      
The density of the crayfish population and the biomass of higher aquatic vegetation in the lake have been determined in field studies.
      
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  langoustine
___TAGSTART___BR___TAGEND___La langoustine du Pacifique Nephropsis occidentalis Faxon, 1893, une espèce de taille moyenne, n'est connue que de quelques localités dans le Pacifique est, entre le golfe de Californie et le Chili.
      


Taylor et al. (1999) studied the fossil crayfish from the Upper Jurassic Yixian Formation of Jehol Group, Liaoning Province, China. Very recently more specimens were found from these sites. One of these is worthy of special remark and illustration. Specimen 126354 appears to be a molted exo skeleton (Plate Ⅰ). Much research has been conducted on the taphonomy of crustaceans (e. g., see Hof and Briggs, 1997). In all cases, these experiments have involved the death and preservation of intact animals. The...

Taylor et al. (1999) studied the fossil crayfish from the Upper Jurassic Yixian Formation of Jehol Group, Liaoning Province, China. Very recently more specimens were found from these sites. One of these is worthy of special remark and illustration. Specimen 126354 appears to be a molted exo skeleton (Plate Ⅰ). Much research has been conducted on the taphonomy of crustaceans (e. g., see Hof and Briggs, 1997). In all cases, these experiments have involved the death and preservation of intact animals. The processes of bacterially modulated phosphatization commence almost immediate after death, and distinctive stages in the process have been recognized for both the cuticles and soft tissues therein. Actual molts in the fossil record are rare. The entire mineral and much of the organic material of an arthropod exoskeleton are reabsorbed prior to ecdysis. What is cast off then is very thin and friable, and these breakdown very readily. Furthermore, crustaceans often eat the shed exoskeleton to recycle the unabsorbed materials back into laying down the layers of the new skeleton. Consequently, molted skeletons do not remain in the environment for long in order to be buried and fossilized. This specimen appears to us to be a molt for three reasons. First is its apparent lack of a carapace. As crayfish molt, the exoskeleton typically splits down the dorsal midline to allow the animal to step out of the shell. The carapace is attached to the rest of the exoskeleton by thin arthrodial membranes in the branchiostegal region and at the front of the cephalon. These readily separate from the remains of the sternites and endoskeletal apodemes along the ventral surface. Second, the thoracic limbs are partially disarticu lated and splayed in a manner of a molt, and the fractosternal suture rather evident. The arthrodial membranes between leg and body segments are very thin in a molted skeleton and can easily part. Third, there is little or no evidence of internal phosphatized soft tissue in the specimen at hand. Crayfish of the Jehol biota almost always have remains of the soft tissue preserved, and indeed pre sence of this material often complicates interpretation of the fossilized structures on these animals. There is some indication of spot phosphatization of the cuticle in this specimen, akin to that documented by Hof and Briggs (1997), but we see no remnants of phosphtized muscles beneath the cuticle. This specimen probably is a post adult individual some 11.5 cm in length, and may be a female with an annulus ventralis. It may belong to Cricoidoscelosus aethus rather than Palaeocambarus licenti based on its flagellate pleopods. The recognition of these molts adds to the unusual and distinctive preservation now becoming recognized from the various localities and strata of the Jehol biota of northeastern China.

淡水小龙虾化石在世界上十分少见。龙虾蜕皮的化石还未曾有过记录。文中讨论热河生物群上侏罗统义县组发现的、保存十分完好的蜕皮化石。判断其蜕皮标本的 3个理由是 :没有保存头胸甲 ;步足与体节之间的关节膜很薄以及几乎看不到磷酸盐化的软组织。

Mechanism of the enzymolysis of muscle proteins from Harengula Zunasi Bleeker by compound enzyme that obtainedfrom mixture with papain and flavorease was studied. The optimum conditions of compound enzyme for enzymolysis muscle proteinare at enzyme consistency 7.5×103IU/g protein, temperature 45℃, pH6.5 and substrate consistency 5.5g protein % throughorthogonal trial with the constant time of 2 h. Under the optimum conditions, there are 3 linear relationship models expressed asDH%=0.026×[hydrolysis time]+8.85...

Mechanism of the enzymolysis of muscle proteins from Harengula Zunasi Bleeker by compound enzyme that obtainedfrom mixture with papain and flavorease was studied. The optimum conditions of compound enzyme for enzymolysis muscle proteinare at enzyme consistency 7.5×103IU/g protein, temperature 45℃, pH6.5 and substrate consistency 5.5g protein % throughorthogonal trial with the constant time of 2 h. Under the optimum conditions, there are 3 linear relationship models expressed asDH%=0.026×[hydrolysis time]+8.85 (r=0.98), TFAA (total free amino acids of hydrolysate) =0.16×[hydrolysis time]+38.76(r=0.99) and MLPL(mean length of peptide linkage of hydrolysate)=-0.019×[hydrolysis time]+10.79(r=-0.96).The analysisof free amino acids revealed that compound enzyme has the strongest hydrolysis specificity toward the peptide linkages suppliedby cysteine and phenylalanine+tyrosine and the lowest hydrolysis specificity toward the peptide bonds supplied by tryptophane,proline, asparaginic acid, serine, glycine and glutamic acid. Meanwhile, the amino acids arriving at maximum hydrolyzing capac-ity before 210 min may have participated in the forming of the new peptide bonds at certain extent after arriving at themselvesmaximum hydrolyzing capacity. The determining of nitrogen content revealed that there is significant difference of the moleculesize of nitrogenous compositions among centrifugal hydrolysates, 0.45 μm hydrolysates and 0.22 μm hydrolysates at sametime of a range from 30 to 210 min because their nitrogen content has significant difference. The determining of molecularweight revealed that there is no significant difference in mean of relative molecular weight of all centrifugal hydrolasates and therelative molecular weight being from 300 to 1200 is covered 66% to 78% of total of the molecule number in centrifugal hydroly-sates. It is possible to give fundament and recommendations for the all-around utilization of Harengula Zunasi due to this work.

本文研究了海水鱼青鳞鱼(Harengula Zunasi Bleeker)肌肉蛋白由木瓜蛋白酶和风味酶复合而成的复合酶水解机制。当水解时间固定为120min时,采用正交试验法优选得到复合酶水解的适宜条件为酶浓度为7.5×103IU/g蛋白质、温度为45℃、pH6.5和底物浓度为5.5g蛋白质%。在此适宜的水解条件下,蛋白质水解度与水解时间的关系曲线类似于已公开发表的沙丁鱼、小龙虾、鲱鱼及鲑鱼的酶水解曲线;在30~210min的水解时间内,水解机理可以用三个线性方程式来描述:DH%=0.026×水解时间+8.85 (r=0.98)、产物游离氨基酸总量TFAA =0.16×水解时间+38.76 (r=0.99)和产物平均链长MLPL=-0.019×水解时间+10.79 (r=-0.96)。产物游离氨基酸分析结果揭示了复合酶对胱氨酸、苯丙氨酸和酪氨酸结合的肽键有最高特异性,而对色氨酸、脯氨酸、天门冬氨酸、丝氨酸、甘氨酸和谷氨酸有最低特异性; 同时,在210min之前达到最大水解力(HC)的游离氨基酸或多或少又参与了新的肽键的形成,揭示复合酶对青鳞鱼肌肉蛋白质不仅具有水解作用而且还有合成作用。水解产物含氮...

本文研究了海水鱼青鳞鱼(Harengula Zunasi Bleeker)肌肉蛋白由木瓜蛋白酶和风味酶复合而成的复合酶水解机制。当水解时间固定为120min时,采用正交试验法优选得到复合酶水解的适宜条件为酶浓度为7.5×103IU/g蛋白质、温度为45℃、pH6.5和底物浓度为5.5g蛋白质%。在此适宜的水解条件下,蛋白质水解度与水解时间的关系曲线类似于已公开发表的沙丁鱼、小龙虾、鲱鱼及鲑鱼的酶水解曲线;在30~210min的水解时间内,水解机理可以用三个线性方程式来描述:DH%=0.026×水解时间+8.85 (r=0.98)、产物游离氨基酸总量TFAA =0.16×水解时间+38.76 (r=0.99)和产物平均链长MLPL=-0.019×水解时间+10.79 (r=-0.96)。产物游离氨基酸分析结果揭示了复合酶对胱氨酸、苯丙氨酸和酪氨酸结合的肽键有最高特异性,而对色氨酸、脯氨酸、天门冬氨酸、丝氨酸、甘氨酸和谷氨酸有最低特异性; 同时,在210min之前达到最大水解力(HC)的游离氨基酸或多或少又参与了新的肽键的形成,揭示复合酶对青鳞鱼肌肉蛋白质不仅具有水解作用而且还有合成作用。水解产物含氮量分析表明复合酶水解产物经离心、0.45 μm和0.22 μm微孔过滤所得到的三种类型的水解产物的含氮化合物在分子大小方面有一定的差异。分子量分析表明在30~210min的酶水解产物经离心

In view of marked biological hazards existing in exported crawfish products, risk management measures were put forward and evaluated in many ways. Establishing and implementing HACCP system on the basis of synthetically using above-mentioned risk management measures is also suggested.

针对出口淡水小龙虾产品存在的生物显著危害,从多方面对风险管理措施进行了评价研究,并提出了在综合运用各种风险管理措施的基础上建立和运行HACCP体系的建议。

 
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