artificial element meaning in English
人工放射性元素
人造放射性元素
人造元素
Examples
- 4 . some of the agritourism projects show too much artificial elements , deviating from the principals of ecological tourism
4 、个别观光农业旅游项目在开发过程中，人工雕琢痕迹明显，有悖于生态旅游主题思想。 - Snow phoenix selenium - rich protein is a kind of vegetable protein extracted with modern purification processes from soybeans grown in enshi , an autonomous prefecture known as ‘ china ' s capital of selenium . ’ naturally rich in organic selenium and totally free from artificial elements , snow phoenix is a rare product simultaneously capable of enhancing immunity and removing cancerous elements from the human body
本品系以‘中国硒都’ - - - -湖北恩施所产富硒大豆为原料、采用现代技术提炼加工的高纯度富硒植物蛋白，具有同时补充有机硒和植物蛋白的双重功效，纯自然，不含任何人工添加成分，是提高人体免疫力、阻止致癌物质留存体内的稀有产品。 - For ecological system , the state of the system in a moment will be influenced by the state in history as well as by the relation of species at that moment , say , the influence of time delay , and so if we consider it , we will be more precisely in discribe the change and development of the system ; on the other hand , the population of species may be distributed in different patchs because of the influences of envionment or artificial element , this made us had to consider not only the time element but also the spatial element , said the diffusion of species
对于生态系统而言，系统在某时刻的状态(即种群密度的增长率)不仅受到当时各种群间关系的影响，也应当受到历史的制约，也即是时滞效应的影响，因而在生态系统中考虑时滞因素，将能更正确的描述系统的变化于发展；另一方面，由于环境或人为因素的影响而使种群的分布呈现一定的区域性，这就使得我们在对其进行研究时不仅要考虑时间因素，更应该考虑空间因素，即种群间的扩散效应。