element n. 1.要素;成分;(构成)部分;分子。 2.【化学】元素;【数学】元,素;【机械工程】单元;单体;【无线电】元件;【植物;植物学】原种。 3.【电学】电池;电极;电阻丝。 4.生存环境,活动范围;本行,本领。 5.〔pl.〕原理;初步;大纲。 6.〔pl.〕自然力;暴风雨。 7.【军事】小队,分队。 8.〔pl.〕【宗教】(圣餐用)面包和葡萄酒。 the four elements (古希腊哲学家认为组成世界的地、水、火、风)四元素。 discontented elements 不平分子。 daughter element 【物理学】子元素。 control element 控制元件。 the elements of grammer 语法基础。 in one's element 在自己(活动)天地内,如鱼得水。 out of one's element 在自己活动天地外,不得其所,格格不入。 strife [war] of the elements 暴风雨。
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。