美军将在军舰上部署激光炮

时间：2014-02-21 06:00:50

（单词翻译:单击）

　　Some of the Navy's futuristic weapons sound like something out of "Star Wars," with lasers designed to shoot down aerial drones and electric guns that fire projectiles² at hypersonic speeds.

　　That future is now.

　　The Navy plans to deploy³ its first laser on a ship later this year, and it intends to test an electromagnetic rail gun prototype aboard a vessel⁴ within two years.

　　For the Navy, it's not so much about the whiz-bang technology as it is about the economics of such armaments（军备，武器）. Both costs pennies on the dollar compared with missiles and smart bombs, and the weapons can be fired continuously, unlike missiles and bombs, which eventually run out.

　　"It fundamentally changes the way we fight," said Capt. Mike Ziv, program manager for directed energy and electric weapon systems for the Naval⁵ Sea Systems Command.

　　The Navy's laser technology has evolved to the point that a prototype to be deployed⁶ aboard the USS Ponce this summer can be operated by a single sailor, he said.

　　The solid-state Laser Weapon System is designed to target what the Navy describes as "asymmetrical⁷ threats." Those include aerial drones, speed boats and swarm⁸ boats, all potential threats to warships⁹ in the Persian Gulf¹⁰, where the Ponce, a floating staging base, is set to be deployed.

　　Rail guns, which have been tested on land in Virginia, fire a projectile¹ at six or seven times the speed of sound -- enough velocity¹¹ to cause severe damage. The Navy sees them as replacing or supplementing old-school guns, firing lethal¹² projectiles（落弹数） from long distances.

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1 projectile
n.投射物，发射体；adj.向前开进的；推进的；抛掷的
参考例句：
The vertical and horizontal motions of a projectile can be treated independently.抛射体的竖直方向和水平方向的运动能够分开来处理。 Have you altered the plans of the projectile as the telegram suggests?你已经按照电报的要求修改炮弹图样了吗?

2 projectiles
n.抛射体( projectile的名词复数 )；（炮弹、子弹等）射弹，（火箭等）自动推进的武器
参考例句：
These differences are connected with the strong absorption of the composite projectiles. 这些差别与复杂的入射粒子的强烈吸收有关。来自辞典例句 Projectiles became more important because cannons could now fire balls over hundreds or yards. 抛射体变得更加重要，因为人们已能用大炮把炮弹射到几百码的距离之外。来自辞典例句

3 deploy
v.（军）散开成战斗队形，布置，展开
参考例句：
The infantry began to deploy at dawn.步兵黎明时开始进入战斗位置。 The president said he had no intention of deploying ground troops.总统称并不打算部署地面部队。

4 vessel
n.船舶；容器，器皿；管，导管，血管
参考例句：
The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。 You should put the water into a vessel.你应该把水装入容器中。

5 naval
adj.海军的，军舰的，船的
参考例句：
He took part in a great naval battle.他参加了一次大海战。 The harbour is an important naval base.该港是一个重要的海军基地。

6 deployed
（尤指军事行动）使展开( deploy的过去式和过去分词 )；施展；部署；有效地利用
参考例句：
Tanks have been deployed all along the front line. 沿整个前线已部署了坦克。 The artillery was deployed to bear on the fort. 火炮是对着那个碉堡部署的。

7 asymmetrical
adj.不均匀的，不对称的
参考例句：
Most people's faces are asymmetrical.多数人的脸并不对称。 Folds may be gentle and symmetrical,or sharp and asymmetrical.褶皱可以是平缓而对称的，也可以是陡峭而非对称的。

8 swarm
n.(昆虫)等一大群；vi.成群飞舞；蜂拥而入
参考例句：
There is a swarm of bees in the tree.这树上有一窝蜜蜂。 A swarm of ants are moving busily.一群蚂蚁正在忙碌地搬家。

9 warships
军舰，战舰( warship的名词复数 )；舰只
参考例句：
The enemy warships were disengaged from the battle after suffering heavy casualties. 在遭受惨重伤亡后，敌舰退出了海战。 The government fitted out warships and sailors for them. 政府给他们配备了战舰和水手。

10 gulf
n.海湾；深渊，鸿沟；分歧，隔阂
参考例句：
The gulf between the two leaders cannot be bridged.两位领导人之间的鸿沟难以跨越。 There is a gulf between the two cities.这两座城市间有个海湾。

11 velocity
n.速度，速率
参考例句：
Einstein's theory links energy with mass and velocity of light.爱因斯坦的理论把能量同质量和光速联系起来。 The velocity of light is about 300000 kilometres per second.光速约为每秒300000公里。

12 lethal
adj.致死的；毁灭性的
参考例句：
A hammer can be a lethal weapon.铁锤可以是致命的武器。 She took a lethal amount of poison and died.她服了致命剂量的毒药死了。