【电】 感应线

off-line

Roser-Nelaton line

jump a queue; cut a line

casting weight fishing line (line)

Baillarger's line

built-in smokemeter【环境】;in-line smokemeter【环境】

coaxial line tube

queu(e)ing theory【数】;theory of queu(e)ing【数】;waiting line theory【数】