In order to reduce the cost and increase the life of portable surface-to-air missile weapon training equipment, it is put forward to use a simulative seeker to replace mechanical gyro seeker.

为了降低便携式地空导弹射击训练器材的生产成本并提高其使用寿命，提出了一种用模拟导引头替代机械陀螺导引头设计方法。

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The training ranges from lessons on how to properly handle and hold a weapon to knowing the law so officers understand how far they are permitted to go to do their jobs.

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We have this incredibly powerful alliance that is multidimensional and involves a whole range of coordination, training activities, making sure that there's interoperability with respect to various weapon systems and our defensive capabilities.

WHITEHOUSE: President Obama and President Lee Hold a News Conference

The 60mm mortar is a weapon that traditionally requires three to four Marines to operate, but it's common during training for others to observe nearby.

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