| 1. | 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。 |
| 2. | 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。 |
| 3. | Bifurcation problem of a single species model with continuous delay 一类具连续时滞的单种群系统的分支问题 |
| 4. | The number of mixed species population is twice as many as single species population 4只左右。混合群的数量是单种群数量的2倍。 |
| 5. | Existence of positive periodic solution for a single species difference model with variable delay 一类可反对称化矩阵反问题有解的条件 |
| 6. | Exploring the protection of ecology system by the harvesting optimal theory of single specie 从单种群模型捕获的优化理论探讨生态系统的保护 |
| 7. | China is is actively encouraging tree planting , but fast - growing , single species forests threaten china ' s wildlife and biodiversity 中国在大力鼓励植树造林,但速生丰产林和人工纯林的发展对中国的野生物种和天然林生物多样性造成了威胁。 |
| 8. | 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。 |
| 9. | Overall , between 2 and 10 percent of mammal populations ( groups of a single species in a specific geographical location ) are thought to have disappeared along with their habitat 总体估算,哺乳动物种群数目(一个特定地理区域内单一物种的群数)的2到10被认为已经和它们的生态环境一并消失。 |