Turkish officials were in Washington last month to defend their government's no-vote in the latest round of U.N.sanctions against Tehran.

VOA: standard.2010.07.26

All right, q has to be just the opposite of this because we've already figured out that there's no change in u.

好，q一定与它,相差一个符号，因为我们已经,指出U是不变的。

麻省理工公开课 - 热力学与动力学课程节选

U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.

什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。

麻省理工公开课 - 热力学与动力学课程节选

No breakthroughs took place as the three leaders met on the sidelines of the U.N.General Assembly session in New York.

VOA: standard.2009.09.22

A U.S.Embassy spokesman in Addis Ababa said there is currently no extradition treaty between the United States and Ethiopia.

VOA: standard.2009.12.23

In his visit to Tokyo last month, U.S.Defense Secretary Robert Gates said there was no room for renegotiating the deal.

VOA: standard.2009.11.11

Now,the U.S.government is changing the rules to require airlines to check the no-fly list within two hours after being notified of changes.

VOA: standard.2010.05.06

U.S.states where more people said they got no physical exercise outside work lost more quality adjusted life years.

VOA: standard.2010.08.10

It continues to confirm that some U.S.bombers, all the B-1 bombers, no longer have a nuclear weapons role,".

VOA: standard.2009.04.08

"UNRWA is helping us." "I remember the first days of the closure when we had no flour, the U.N.gave us flour and food.

VOA: standard.2010.06.16

Japan recently announced it will no longer refuel ships involved in the U.S.-led war in Afghanistan.

VOA: standard.2009.11.13

But the secretary stressed that the United States has "no intention" of withdrawing from Afghanistan, and said even a U.S.troop reduction is "very unlikely."

VOA: standard.2009.10.23

To make matters worse,consumers, the main drivers of the U.S.economy, were in no mood to spend.

VOA: standard.2010.01.15

Though he favors an end to the shuttle program, he is upset there will be no other U.S.spacecraft to get astronauts to the Space Station.

VOA: standard.2010.04.15

"There is no evidence that the U.S.is any less strong than it has always been.

VOA: standard.2010.03.18

The Obama administration says there are no plans to close the 3,000 kilometer U.S.-Mexico border.

VOA: standard.2009.04.30

U.S.officials in the Bush administration insisted there was no linkage between offensive and defensive weapons.

VOA: standard.2009.07.15

But there was no plan for distributing a pandemic level vaccine in the U.S.or anywhere.

VOA: standard.2010.04.29

Slim is currently performing on his "No Paid Holidays" tour across the U.S.,Canada and Europe.

VOA: standard.2010.08.04

There was no immediate reaction from either the Iraqi or U.S.government to his charges.

VOA: standard.2009.09.15

The Pentagon press secretary also said there was no indication in the briefing he attended of plans to discipline any U.S.military personnel for their actions that day.

VOA: standard.2009.06.08

tax evasion charges. In U.S.horse racing,there was no Triple Crown winner - again.

VOA: standard.2009.12.24

(SPEAKING) Mehmanparast says Washington's pursuit of economic sanctions against Iran, in addition to what he claims is U.S.maltreatment of Iranians, mean there is no real reason to negotiate.

VOA: standard.2010.07.20

to protect Poland, no matter what. But during his visit, Vice President Biden did his best to reassure Poles that the U.S., and NATO,were still on their side.

VOA: standard.2009.10.22

President Obama , and administration officials insist there is no question of any lessening of overall U.S.support for civil society and democracy groups seeking democratic reforms in Iran.

VOA: standard.2009.10.28

U.S.officials say no part of the three-stage rocket reached orbit and the launching was a thinly-disguised test of a long-range ballistic missile that was banned under a 2006 U.N.resolution.

VOA: standard.2009.04.15

but that he sees no real change in U.S.policy toward Iran.

VOA: standard.2009.03.21

He says he has no faith in new U.S.efforts for peace.

VOA: standard.2009.04.09

Afghan officials have said that as many as 140 civilians died, but the U.S.military has put the civilian toll at no more than 30, along with about 65 insurgents.

VOA: standard.2009.06.08

Tehran's U.N.Ambassador, Mohammed Khazaee, lectured the council after the vote,and said "no amount of pressure and mischief" will break Iran's "determination to pursue and defend its legal and inalienable rights."

VOA: standard.2010.06.09