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- Optimal Control Problem of a Single Species System Affected by Toxicant 一类受毒素影响的单种群系统最优控制问题
- The highest rate of poaching for a single species was more than 70 percent. 对一种鹦鹉的偷猎比例高达70%25有余。
- Both single species and whole groups of species last for very unequal periods. 单独的物种以及整个的物种群存续的时期极不相等。
- Some TSEs stick to a single species, while others ignore such boundaries. 有些TSEs只针对某一物种，而其他TSEs却设有种的界限。
- As in many widely separated families of plants, single species and single genera possess the power of revolving. 在系统相距甚远的许多不同科植物中，常常有一个单独的种或属具有这种盘绕的能力。
- The sole member of its group, such as a single species that constitutes a genus. 单型一组的唯一成员，如只组成一属的种
- It is as if our understanding of all arachnids were based on clues left by a single species of extinct spider. 这就好像我们对蛛形纲的了解，全是从一种已灭绝的蜘蛛得来的。
- Isoenzyme (isozyme) An enzyme that occurs in different structural forms within a single species. 同功酶：是某一物种中具有不同的结构类型的一类酶。
- The damaged reefs were then covered by a single species of seaweed which threatened to suffocate the coral and cause further loss. 遭到破坏的珊瑚礁被单一种类的海藻所覆盖，以致于珊瑚窒息，进而造成破坏。
- As a result, some northern hardwood forests that once had a lush understory now have but a single species of native herb and virtually no tree seedlings. 结果，有些曾经拥有丰富林下落叶层的北美硬木林，现在除了一种原生草本植物之外，实际上没有任何树苗。
- A lot of single species of bacteria was seperated from the pathological changes position of the liver in sick (or dead) soft-shelled turtle which was infected by septicae-uia. 从发生败血症感染的病(死)甲鱼病变组织与肝脏中，分离到大量纯一的同种细菌。
- Consumers may be generalists (polyphagous), taking a wide variety of prey species or may specialize on single species or a range of closely related species (monophagous). 消费者可能是泛化种（多食性的），吃广范围的猎物种，或者是特化为吃一个或一组有密切关系的种（单食性的）。
- Any fish-eating bird of the family Anhingidae (order Pelecaniformes), sometimes considered a single species (Anhinga anhinga) with geographical variants. 鹈形目蛇鹈科以鱼为食的鸟类的统称，有时认为只有一种（Anhinga anhinga），但有地理变型。
- By aid of the monotone iteration technique and the upper and lower solutions method, the existence of travelling wave fronts is established for a single species population model with stage structure and distributed maturation delay. 利用单调迭代和上下解方法证明了一类具有分布成熟时间和阶段结构的单物种种群模型的波前解的存在性.
- Abstract: A lot of single species of bacteria was seperated from the pathological changes position of the liver in sick (or dead) soft-shelled turtle which was infected by septicae-uia. 文摘:从发生败血症感染的病(死)甲鱼病变组织与肝脏中，分离到大量纯一的同种细菌。
- Though classified as a single species, Bemisia is actually a complex of “biotypes”, and biotype B, which arrived in China in the late 1990s, is rapidly taking the place over from the wimpy natives. 除了南极洲，在每片大陆上都能发现害虫烟粉虱的踪迹。
- Usually viruses move around within a single species, but scientists say pigs are different because their lungs have receptors that make them susceptible to swine, human and avian influenza viruses. 通常病毒都是在一个单一的物种传染，但科学家说，猪是不同的，因为他们的肺部有接受体，使它们容易受到猪、人和家禽的流感病毒传染。
- While statistical techniques have been optimized to improve model accuracy, less focus has been given to the question: How does the autecology of a single species affect model quality? 当统计技术有效改善模式的正确性时，较少注意已存在的问题：个体生物学中，单一物种是否会影响模式特性？
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
