fixed sample中文什么意思

例句与用法

1. The authors also validated the model using the data of fixed sample forestland of 1998
   并利用青海省5个地区的6个县1998年固定样地的林地资源实际调查资料，对该模型进行验证。
2. Making use of the internet fixed sample group method , netvalue adopted global unique techniques to trace cyber users every online behavior including webpage browsing , email , chatting , file transferring , audio video and instant message transmission
   Netvalue公司是采用互联网固定样本组的研究方法，凭借全球唯一的技术，可以跟踪测量到互联网用户的网页浏览电子邮件聊天文件传输视频音频即时信息传输等全部网上行为。
3. The fixed sample sites were set up in shaowu fujian for the phenophase observation study , flowering and seedling regularity study and cultivation biological character study of michelia chapensis , which could provide fundamentals for the cultivation of michelia chapensis
   摘要在福建邵武建立固定样地进行乐昌含笑物候观测研究，了解南方乐昌含笑的开花结实规律，探讨乐昌含笑的栽培生物学特性，为乐昌含笑人工栽培提供科学依据和技术支撑。