left ventricular assist devices and the failing heart: a bridge to recovery, a permanent assist device, or a bridge too far?

although artificial hearts are stymied by complications, left ventricular assist devices (lvads) are extending lives.

虽然人工心脏面临引起并发症的窘境，左心室辅助器（LVAD）却可延长许多病患的生命。

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heart assist devices are mechanical pumps that aid in the pumping action of a weakened heart.

心脏辅助泵装置是针对心率弱的病人。

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the pumps, ventricular assist devices, are typically used with a heart still in place to help the chambers circulate blood.

这套心室辅助装置，通常是在心脏存在的情况下作为促进心室血液循环的。

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most heart assist devices support the heart's left ventricle, which pumps oxygen-rich blood to the rest of the body.

大多数的心脏辅助泵装置只支持左心室，它把氧合血泵入身体其他地方。

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now, once again, germany had a fleet in being.

现在，德国再一次有了一支舰队。

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in world war ii, actions of the italian royal navy ( regia marina) in 1940 also demonstrate the idea of a 'fleet in being'.

二战期间，意大利皇家海军在作战中也运用了存在舰队的理论。

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the first supertankers had teething troubles.

第一批超级油船在建造初期困难颇多。

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analysts say the somali pirates target all sorts of vessels: from small pleasure crafts to cargo ships and even giant oil supertankers.

分析家认为索马里海盗抢劫的目标是所有种类的船只，从小船到货船，甚至是大型油轮。

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today, an endless parade of supertankers, along this blue ribbon that cuts through barren desert.

今天，一艘接一艘超级油轮沿着这条蓝丝带穿过不毛沙漠。

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there have been a series of pirate attacks off somalia in the last few years, with vessels from supertankers to cruise ships being targeted.

这几年在索马里有一系列海盗袭击案件，从巨型油轮到观光邮轮都被攻击过。

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where and , etc. , are bogoliubov quasiparticle operators.

其中，和等是巴格寥夫准粒子算符。

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we have proved that the two-mode squeezed state is also a kind of coherent state in a quasiparticle space.

证明了双模压缩态也是准粒子空间的双模相干态，它可以对应两类不同的位移宗量。

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consider momentum and spin of a quasiparticle in the state (2). what are they? do they depend on the bogoliubov angle?

考虑态（2）中的准粒子动量及自旋。它们是什么？它们依赖于巴格寥夫角吗？

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similarly, a quasiparticle in graphene always moves at a high constant speed, albeit about 300 times slower than the speed of light.

同样地，石墨薄膜中的准粒子一直以极高的速度移动，虽然比光速慢了大约300倍。

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stoic muskox, abstract lava images and stunning landscapes all feature in this year's gdt awards

坚韧的麝牛、抽象的熔岩图像以及令人惊叹的景观—今年GDT获奖全部作品

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my quenchless thirst for wealth and friends is never- ceasing ;

我对财富与朋友的不可熄灭渴求永不停息；

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are balls of quenchless fire to burn thy city.

是不灭的火焰弹丸，要把这王城焚毁。

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passionate love is a quenchless thellorst.

强烈热闹的爱情是不成按捺的渴望。

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but is quenchless feel sick, others no matter little what material have made a mistake, and the end, are very satisfactory ah.

但是就是不可抑制的觉得很舒服，他人无论少了什么材料犯了什么错误，结局都很圆满啊。

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the forced initiative training methods of foil fencing

花剑逼迫式打法的训练

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