We propose a new method to realize degenerate four-wave-mixing in nonlinear optical thin films using long-range surface-plasmons-wave as pumps.

本文提出一种以长程表面电磁激元波作为泵波，在非线性介质膜中实现简并四波混频的新方案。

youdao

The effective long-range surface observation system should be set up to improve the combat capability and survival capability of surface ship formation.

为提高水面舰艇编队的作战能力和生存能力，应建立有效的远程对海观察体系。

youdao

In order to satisfy the operational requirements of long-range surface-to -air BTT missiles, the gains of the autopilot are taken as functions of the roll rate and the dynamic pressure.

为了满足远程全空域BTT导弹作战要求，自动驾驶仪中的增益是滚转速率和动压头的函数。

youdao

One of the canceled ships was, or is, a next-generation destroyer capable of defending the fleet against air and surface attacks while supporting marines ashore with long-range guns.

FORBES: How To Waste $100 Billion: Weapons That Didn't Work Out

Old Trafford is a football pitch, so the grass is shorter and with the game kicking off at 1800 BST, the surface will be slippier, so I'm not expecting many long-range tries.

BBC: Long to steer Saints to victory