We cannot see them everyday. F: If they lived with us.
他们不能跟我们一起住。
Then, yes, we can apply Green's theorem and it will tell us that it's equal to the double integral in here of curl F dA, 0 which will be zero because this is zero.
那就可以使用格林公式了，并且我们知道,它就等于的二重积分，结果为0，因为旋度F等于。
That should tell us something about f.
这会告诉我们，关于f的一些事情。
We also have 20 concessions around the world, in stores like Toys “R” Us and F.
我们在世界各地还有20个特许代售点，比如玩具反斗城和F.
Parts of the downed F-117 wreckage -such as the left wing with us Air Force insignia, the cockpit canopy, ejection seat, pilot's helmet and radio -are exhibited at Belgrade's aviation museum.
F - 117的部分残骸，例如印有美国空军标志的左机翼，座舱罩，弹射座椅，飞行员头盔和无线电都陈列在贝尔格莱德的航空博物馆做展览。
We start with the F-22 Raptor, the newest fighter in the US Air Force arsenal.
我们先从美国空军武器库中最新型的战斗机——F – 22“猛禽”开始。
This flawless flight allows us to move into the next phase. In the next couple of weeks, we will ferry F-15E1 to the test range and launch an AIM-120.
这次完美的飞行使得我们可以进行下一阶段的研究，在未来几周内，我们将把F - 15e1运送到试验的距离来发射AIM - 120。
We made good progress, and were soon heading west where, unbeknown to us, there was a heatwave – temperatures were predicted to reach 102?F in the shade.
我们的骑行速度很快，不久就转为朝西的方向，但不知道那里正经受着热浪的袭击——天气预报说在阴影处的温度就可高达102华氏度。
The J-20 is likely five years from deployment. Its radar-evading ability is unknown, and probably no match for the operational US F-22 stealth fighter.
歼- 20可能在五年后部署，它的隐身能力尚不清楚，可能无法达到美国F - 22隐形战机的水平。
Now we plug this into what we had before, f and that will give us our function f.
把它代入先前我们得到的，我们就会得到函数。
Here's my C. I. F. us Pacific Coastal City price list. We may adjust the prices according to the quantity you want.
这是我方的美国太平洋沿岸城市到岸价的价目单。我们可以根据你所想要的数量调整价格。
Once the BF-1 has completed its inaugural flight, the US Department of Defense is expected to release funding for the purchase of six F-35B aircraft for the US Marine Corps.
一旦BF-1完成所有测试，美国国防部计划发放资金为美国海军陆战队购买六架F-35B飞机。
They can be seen as at technical parity with US fighters such as the F-15 and F-16, he noted.
它们在技术上可以与美军战机f - 15和F - 16对等。
If you follow us on Twitter, @scifri, @-S-C-I-F-R-I, re-tweet the post -truthy@indiana.
如果您在twitter@scirfri,@-S-C-I-F-R-I,跟着我们做，那请输入-truthy@indiana。
He confirmed that the radar would be fitted on the JF-17, which, along with US-supplied F-16 Fighting Falcons, is set to be the PAF's front-line combat aircraft.
他确定这种雷达适用于JF - 17，这种飞机将和美国提供的F - 16战隼一起，成为巴基斯坦空军的一线战斗机。
There are 16 British-supplied Jaguars still in operation following the replacement of a squadron of Jaguars with F-16 fighter jets made by Lockheed Martin, a US defence contractor, in 2005 and 2006.
2005~2006年，阿曼购进了一批美国洛克希德公司造的F-16喷气式飞机，淘汰了一个空军中队的美洲虎战机，但是现在阿曼还使用着26架英国造的美洲虎战机。
The US started its F-22 programme in the 1980s.
美国早在20世纪80年代就开始了F - 22项目。
F is for Fellowship, eternal life in us flowing.
是交通，永远的生命在我里面流通。
There have been many cases of military hardware failing because of problems in feasibility studies, such as the case of the F-104 second-generation fighter in the us.
军事设备的开发会因为对可行性的错误估计半途而废的案例不少，美国的F - 104第二代战斗机的研发就是个典例。
The F-8 pilot's death nevertheless appears to have brought Beijing unforeseen benefits in terms of access to highly sensitive US equipment and information.
然而，歼8飞行员的死亡看来为北京带来了其未曾预料到的好处，即获得了高度敏感的美国装备和信息。
A plane is landing, taxiing, suddenly displayed on the radar screen are three enemy in the direction of Australia, 14 F-86 flew separately to Fuzhou, was found shortly with how the us F-100 aircraft.
一架架飞机正在降落、滑行中，突然雷达荧屏上显示三都澳方向出现敌情，14架f - 86分三批向福州飞来，紧接着又发现其后跟有多架f - 100美机。
As a veteran of advanced aircraft development programs, he served as a US air Force test pilot on the F-117 stealth fighter and as a General Dynamics test pilot for the YF-22.
做为高级飞机研究项目的老兵，他以美国空军试飞员的身份参与F - 117隐形战斗机的研制并且是YF - 22的常规动力学的试飞员。
Wed rather have you quote us F. O. B. prices.
我们希望你们报离岸价钱。
The F-35C, designed for the US Navy, features larger wings to carry more fuel and provide better low-speed landing approach characteristics to an aircraft carrier.
F - 35c是专为美国海军设计的，采用了更大的机翼以携带更多的燃油并保证在航空母舰上更好的低速降落进场特性。
The F-35C, designed for the US Navy, features larger wings to carry more fuel and provide better low-speed landing approach characteristics to an aircraft carrier.
F - 35c是专为美国海军设计的，采用了更大的机翼以携带更多的燃油并保证在航空母舰上更好的低速降落进场特性。
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