SI关键词检索结果

美国空军速度2.25马赫的F-22猛禽隐形战斗机每架成本3.5亿美元,具备对抗中国歼-20和俄罗斯苏-57的所有工具

The US Air Force’s Mach 2.25 F-22 Raptor Stealth Fighter Costs $350,000,000 Per Plane and Has All the Tools to Take on China’s J-20 and Russia’s Su-57 Felon

A 325th Fighter Wing F-22A Raptor takes off for a mission Oct. 28 at Eglin Air Force Base, Fla. A squadron of the wing's Raptors have been at Eglin since Hurricane Michael devastated Tyndall Air Force Base in 2018. (U.S. Air Force photo/Jaime Bis

95,000吨美国海军核动力航母USS Enterprise拥有8座核反应堆,建造成本4.51亿美元,拆解费用将达14.31亿美元

95,000-Ton US Navy Nuclear Aircraft Carrier USS Enterprise Has 8 Nuclear Reactors That Cost $451,000,000 to Build and Now Will Cost $1,431,000,000 to Take Apart

STRAIT OF GIBRALTAR (Oct. 23, 2012) Aircraft carrier USS Enterprise (CVN 65) transits the Strait of Gibraltar. Enterprise is completing a regularly scheduled deployment to the U.S. 5th and 6th Fleet areas of responsibility in support of maritime

想要证明美国空军F-22猛禽隐形战斗机可被击败?幸运的是,在一场模拟中,海军EA-18G咆哮者完成了击杀

Want Proof the US Air Force F-22 Raptor Stealth Fighter Can Be Beaten? A Navy EA-18G Growler Landed A Kill Shot in What Was Thankfully a Simulation

An F-22A Raptor aircraft assigned to the 154th Fighter Wing, Hawaii Air National Guard, completes flight operations during Sentry Aloha 26-1, Jan. 22, 2026. Sentry Aloha 26-1 is a recurring, large-scale training exercise designed to enhance readi

价值3.5亿美元的美国空军F-22猛禽无所不能:2.25马赫速度,能击败地球上任何战斗机如歼-20或苏-57,但有一个永远无法解决的问题

The $350,000,000 US Air Force F-22 Raptor Can Do It All: Mach 2.25 Speeds, Can Beat Any Fighter on Earth Like the J-20 or Su-57 But Has 1 Problem That Can’t Ever Be Fixed

An F-22 Raptor releases flares during an aerial demonstration at Naval Air Station Oceana, Virginia, Sept. 21, 2025. The display highlights the aircraft’s defensive systems and advanced capabilities, demonstrating both its agility and readiness i

伊朗经济正在崩溃。这与伊朗准备好签署协议不是一回事

Iran’s Economy Is Buckling. That Is Not the Same as Iran Being Ready to Sign a Deal

A U.S. Air Force B-52 Stratofortress aircraft, assigned to the 96th Bomb Squadron from Barksdale Air Force Base, Louisiana, flies over spectators at the Dubai Airshow 2025, Nov. 17, 2025, at the Al Maktoum International Airport in Dubai, United A

美国空军计划了750架F-22猛禽。如果美国今晚就要作战,它能出动56架,且无法再建造

The US Air Force Planned 750 F-22 Raptors. If America Had to Fight Tonight, It Could Launch 56 and Has No Way to Build Anymore

A U.S. Air Force F-22 Raptor assigned to the 154th Wing, Hawaii Air National Guard, takes part in a multi-ship formation off the coast of Hawaii, Jan. 5, 2026. The aircraft participated in a comprehensive training sortie designed to integrate the

Cellebrite为军队模型推出取证设备——StreetInsider

Cellebrite launches discipline forensics equipment for army models – StreetInsider

Cellebrite为军队型号推出纪律取证设备——StreetInsider

经过近六年的曲折,伯灵顿新高中开学

After a Nearly Six Year Saga, Burlington’s New High School Opens Its Doors

Batula Kassim坐在学校新图书馆的落地窗前,阳光与她度过高一学年的翻新梅西百货形成了愉快的对比。Kassim是伯灵顿高中即将升入高二的学生,

税收优惠‘大型交易’刺激了社区创新

Tax break ‘Megadeals’ spurred innovation in communities

Tesla Gigafactory in Nevada 当城市、县

文化变革可能帮助消防员降低癌症风险

Culture change may help firefighters reduce cancer risk

照片显示一名消防员进入一栋燃烧的建筑。 一个沾满烟灰的头盔和

历史上的今天:1978年8月26日,Sigmund Jähn成为首位进入太空的德国人

On this day in space! Aug. 26, 1978: Sigmund Jähn becomes 1st German in space

1978年8月26日,宇航员兼飞行员西格蒙德·扬成为首位进入太空的德国人。以下是这件事的意义。

研究人员解决了阻碍SiC电子学发展的两大问题

Researchers Solve Two Major Problems Holding Back SiC Electronics

一种新的底栅设计利用了SiC的固有特性。二十多年来,碳化硅(SiC)一直被视为在极端环境下工作的电子器件的有前途材料。然而,尽管经过多年的研究,

深度睡眠脑波提供对抗阿尔茨海默病的保护

Deep Sleep Brain Waves Offer Protection Against Alzheimer's

Concordia University

在老年人中,睡眠质量差与认知能力下降、神经退行性疾病和阿尔茨海默病有关。一项由Concordia大学领导的新的国际研究发现...

[甲壳动物 • 2026] Pilumnus guadeloupensis • 来自小安的列斯群岛瓜德罗普的Pilumnus属新种

[Crustacea • 2026] Pilumnus guadeloupensis • A New Species of Pilumnus Leach, 1816 (Decapoda: Brachyura) from Guadeloupe, Lesser Antilles

 Pilumnus guadeloupensis Magalhães, Oliveira-Rogeri, Felder & Mantelatto, 2026 DOI: doi.org/10.5252/zoosystema2026v48a16 摘要  Pilumnus Leach, 1861是海洋蟹类的一个种类繁多的世界性属,典型栖息于岩石和珊瑚沿海环境,以

[鱼类学 • 2026] Glyptothorax jiwanae • 尼泊尔Sisorid鲶鱼属Glyptothorax一新种

[Ichthyology • 2026] Glyptothorax jiwanae • A New Species of the Sisorid Catfish Genus Glyptothorax (Siluriformes: Sisoridae) from Nepal

Glyptothorax jiwanae Haggard, Ng, Edds & Conway, 2026 DOI: doi.org/10.1643/i2025050 x.com/IchsAndHerps 摘要 本研究基于来自尼泊尔的42个标本(体长41–133毫米)描述了一个新种——Glyptothorax jiwanae。它与同属物种的区别在于

[真菌 • 2026] Agrocybe himalayensis • 来自印度喜马拉雅的球盖菇科一新种

[Fungi • 2026] Agrocybe himalayensis (Strophariaceae) • A New Species from Indian Himalaya

 Agrocybe himalayensis Choudhary, Uniyal & Y.P.Sharma, in Choudhary, Sharma et Uniyal, 2026. DOI: doi.org/10.24823/ejb.2026.3599 摘要 基于宏观和微观形态特征,描述了来自印度北阿坎德邦喜马拉雅地区的一个新物种——喜马拉雅田头菇(球盖菇科)。

[爬虫学 • 2026] Ovophis langbianus • 越南南部Langbian高原Ovophis tonkinensis物种复合体一新种

[Herpetology • 2026] Ovophis langbianus • A New Species of the Ovophis tonkinensis species complex (Serpentes: Viperidae) from the Langbian Plateau, southern Vietnam

Ovophis langbianus Poyarkov, Idiiatullina, Ustinova, Bragin, Le, Pawangkhanant, Pham, Suwannapoom, David, Vogel & Nguyen, 2026 Langbian山原矛头蝮 | Rắn lục núi Langbian || DOI: doi.org/10.3897/herpetozoa.39.e206094 摘要 基于综合形态学和分子数据,描述了该属的一个新物种。

[甲壳动物 • 2026] Lemurophusa empusa & Balssiathelphusa inopinata • 东南亚淡水蟹属Balssiathelphusa Bott,1969的修订

[Crustacea • 2026] Lemurophusa empusa & Balssiathelphusa inopinata • Revision of the Southeast Asian freshwater crab Genus Balssiathelphusa Bott, 1969 (Decapoda: Brachyura: Gecarcinucidae)

Lemurophusa empusa Ng & Guinot, 2026 DOI: doi.org/10.5252/zoosystema2026v48a18  摘要 对地蟹科Balssiathelphusa Bott, 1969属的系统分类进行了修订。Balssiathelphusa具有淡水蟹类不典型的分布模式,