front line

1.World-leading within its field, SWEP constantly advances the front line in order to be able to use the very latest technology.

SWEP作为行业领先者，始终坚持不断在开发利用最新技术。

2.The front line belong to the men who worked there—rifle-men and machine gunners, mortarman, forward artillery observers, communications men, and medics.

前为作业于此们所掌握——步枪兵、机枪兵、迫击炮兵、炮火校射兵、通讯兵，以及救护兵。