1．截获 养分在土壤中不经过迁移，而是根系直接从接触的土壤颗粒表面吸收养分，类似于接触交换 （contact exchange），这种方式称为截获。然而由于与根系接触的土壤很少（1～3%），一般不超过10%。
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contact exchange theory 接触交换说
intelligent exchange contact device 智能交流接触器
direct contact heat exchange 直接接触换热
LaShou Exchange Contact 拉手交换名片
On the other hand, there appeared an ever-growing social group of private entrepreneurs who had a constant need to exchange their contact information.
另一方面，私人企业家的数量也在日益增长。这些人需要经常交换他们的联系信息。
The contact and exchange of information between the client and the server begins with the client formatting a packet, as shown below, and sending it to the server.
在客户端与服务器之间的通信和信息交换，以客户端对数据包进行格式化作为开始(如下所示)，并将其发送给服务器。
DubMeNow wants to take on the challenges of business card management and attempts to provide a simple way to exchange contact details by mobile phone.
DubMeNow试图向传统的名片管理发起挑战，它试着提供一种通过手机交换联系信息的简单方式。
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