initial session造句

you can set your password during your initial session
您可以在初次使用时设置密码。
in june this year, the construction of the guangzhou underground line 2 is moving on as planned . 60 % of the civil engineering has been finished, among which, 71 % of the initial session open to traffic and 47 % of the second session has been completed
今年6月份，地铁二号线按计划推进，土建工程累计完成总工程量的60，其中，首通段累计完成工程总量的71；二期通车段累计完成工程总量的47。
It's difficult to find initial session in a sentence. 用initial session造句挺难的