请英文高手帮忙翻译一下这几句话
1Buildpartnershipwithbusinessunitsandlinemanagement.(主要是此处的Line什么意思)
2Consitsofdirectcomputer-to-computertransmissionsamongmultiplefirmsofdatainamachine-readable,structuredformat.
Thetransmissionsenablethedatatobetransmittedandreceivedwithoutrekeying.
3salesorderlines什么意思
都是关于信息系统方面的!谢谢啦