The last 31 hulls of the class have 12 vertical launch tubes for the Tomahawk cruise missile.

在新的31级的船体上有12个可以垂直发射战斧巡弋飞弹的管道。

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The initial launch using rockets upset the gyroscopes, and radio guidance was unreliable because vacuum tubes suffered under high acceleration.

而最初用火箭来发射却干扰了回旋装置，而且无线电导航也缺乏其可靠性，原因是真空管在高度加速的情况下承受不了压力。

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Regardless of type NPN or PNP-type tubes, the internal transistor has three areas, namely, the launch area, base, collector area, the three areas form two PN junction.

无论npn型还是PNP型管，三极管内部均有三个区、即发射区、基区、集电区，三个区形成两个PN结。

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The Arleigh Burke-class vessels are equipped with launch tubes for Tomahawk cruise missiles, Harpoon anti-ship missiles and gun placements for close combat.

BBC: News | In Depth | Military Fact Files

She said police searched the van and found four mortars located in launch tubes, secured in a frame and ready for imminent deployment.

BBC: Londonderry mortars: Two men remanded in custody

He said the team took a hard look at how the number of launch tubes, speed and stealthiness of the vessel affected affordability and then adjusted those features to achieve a 16 percent decrease in the price.

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