In this high power laser system , nonlinear self - focusing effect especially the small - scale self - focusing is the main limiting factor 在这种高功率激光系统中,非线性自聚焦效应是其主要的限制因素,其中尤其以小尺度自聚焦效应最为严重。
If arthur is a direct descendant of septimus , his mother or grandmother ' s age is more of a limiting factor for childbirth than his father 如果亚瑟是西帕提姆斯的直系后代,对于生孩子来说,他的母亲或者祖母的年龄是一个更为重要的控制因素。
Phosphorus is an essential nutrient element for phytoplankton in ocean environments , and sometimes a limiting factor for the primary productivity 摘要活性磷(正磷酸盐)是海洋浮游植物生长所必需的物质基础,在某些海域,它甚至成为初级生产力的限制因素。
It describes and analyzes the functions , the limiting factors , the basic design principles and the evalution methods of the performance management 对绩效和绩效管理的概念,绩效管理的功能、设计基本原则,以及绩效评估方法等做了较为全面的阐述和研究。
Al toxicity is a major limited factor for crop production and quality in acid soil , and it has become the focus of ongoing research in the area of plant stress physiology and genetics 铝毒是酸性土壤影响作物生长的主要原因,已成为植物胁迫生理学与遗传学的重要研究内容。