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Russia objects. But the United States says the system would protect Europe from a possible attack by Iran.
VOA: special.2009.05.23
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Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.
功是负的，总而言之,外界对系统做功的符号为正。
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The energy expanded by the system is smaller for the irreversible process.
它做的,功要小些。
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Most important,the leaders of the new system would be chosen by the government-- not by private business.
VOA: special.2010.09.23
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Once you have registered, if some other slots become available that weren't previously available, I gather you'll be sent some sort of email by the system, in case some other time would be better for you.
一旦你注册了，之前的有些项目,就可用了，系统会用邮件方式向你发送，让你的时间更方便。
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The main agreement of the system, the Antarctic Treaty, was signed by twelve countries in nineteen fifty-nine.
VOA: special.2009.06.03
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This indicates that by combining two lithiums, the energy of the combined system is lower than the energies of the atomic systems.
结果显示，两个锂结合后，其结合后的能量,比原子体系的能量要低。
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But in Washington the rating system is not governed by the labor contract with the teachers union.
VOA: special.2011.08.11
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This, by the way, is a way of showing the fact that everything which appears in a semiotic system is conventional, right?
这也表明了,任何在符号系统中出现的符号都要符合惯例？
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Most of it,he says, could be paid for by reducing waste in the existing health care system.
VOA: special.2009.09.12
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Usually it's done by taking all or part of the infectious agent, and showing them to your immune system in some way.
通常它会带着全部或部分抗原介质,并以某种方式呈递给你的免疫系统
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Syria has long had a single-party system led by the Ba'ath party of the Assad family.
VOA: special.2011.08.06
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A patterned series of these tiny charged berries on the disk represents a single bit of data in the binary number system used by computers.
这些在磁盘上的有序的小粒子,代表这个当代计算机中,二进制中单独的一位。
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By early October,Congress passed the Troubled Asset Relief Program, a rescue plan for the financial system.
VOA: special.2009.09.18
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It's simply your psychological immune system will become stronger, hopefully already by the end of this semester.
只是你的心理免疫系统会变得更强，希望在本学期未就见成效。
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Collectivism is the system of ownership and control of the means of production by the people collectively, usually under the supervision of a government.
VOA: special.2010.06.06
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I want to start out by mentioning taxes and welfare because, I think, that it's really the most important risk management system already in place.
我想从,税收和福利开始讲起，是因为，我认为，它们实际上是现行的最重要的,风险管理机制。
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The system contains millions of nerve cells joined together by long thin fibers, like wires.
VOA: special.2009.01.06
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We know that the way we enter into society is by consent, by agreement to leave the state of nature and to be governed by the majority and by a system of laws, human laws.
众所周知，只有经过同意，才能进入社会,才能脱离自然状态，并被大多数人,被人类法律体系所管辖。
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A common design looks like a high tunnel.Unlike a greenhouse, which uses a heating system, a hoop house is heated by the warmth of the sun.
VOA: special.2009.12.22
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Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.
一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。
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Antarctica is governed by a collection of agreements known as the Antarctic Treaty System.
VOA: special.2009.06.03
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So there's less energy expanded by the system.
系统损失的能量也比较小。
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"So it's closing the door on innovation by locking in a national,uniform bureaucratic system.
VOA: special.2011.06.09
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You see, the quantum condition, by putting quantization into the moangular mentum it is propagated through the entire system. Orbit dimensions are quantized.
你们看，量子条件，通过把,角动量量子化，它就能在这个系统中进行传播,同时轨道大小也被量子化。
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These are all influenced by the gravity of the solar system's largest planet.
VOA: special.2011.02.09
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And so what I get is the energy of the system at the equilibrium separation is given by minus z plus.
这就是通过减去z+得到得平衡分离时,我得到的能量体系。
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Hayes started by changing the system that employed people in government jobs.
VOA: special.2010.03.11
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The respiratory system plays an important role in maintaining our internal environment at the proper level of oxygen, by bringing the right amount in.
呼吸系统的重要性在于,通过向体内输入适量的氧气,维持人体内环境中的氧平衡
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That's a big problem and so can you protect these cells that you give to the recipient from attack by the recipient's immune system?
并且至关重要,那么你们想办法保护这些植入受体的细胞,使它们免受免疫系统的排异反应么
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