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Is Israel's Iron Dome missile defense system ironclad?_我的网站

A | JERUSALEM -- Since Israel activated the Iron Dome in 2011, the cutting-edge rocket-defense system has intercepted thousands of rockets fired from the Gaza Strip.The system has given residents a sense of security, and Israelis can often be seen watching the projectiles flying through the skies and destroying their targets overhead.But the current war with Hamas might be its stiffest challenge yet.In just two weeks, Hamas has fired 7,000 rockets toward Israel, according to the Israeli military. That is more than any of the previous four wars fought between Israel and Hamas since the militant group seized power in Gaza in 2007. On Oct. 7 alone, the first day of fighting, Hamas launched at least 2,000 rockets, according to data from West Point. Lebanon's Hezbollah has also fired hundreds of rockets along Israel's northern front since the fighting began.Most of the rockets have been intercepted. But some have managed to get through, killing at least 11 people and hitting buildings as far away as Tel Aviv, according to Israeli officials.Here is a look at the accomplishments — and limitations — of the Iron Dome.The Iron Dome is a series of batteries that use radars to detect incoming short-range rockets and intercept them.Each battery has three or four launchers, 20 missiles, and a radar, according to Raytheon, the U.S. defense giant that co-produces the system with Israel's Rafael Defense Systems.Once the radar detects a rocket, the system determines whether the rocket is headed toward a populated area. If so, it launches a missile to intercept and destroy the rocket. If the system determines the rocket is headed to an open area or into the sea, it is allowed to land, thus conserving missiles. According to the military, all interceptions occur in Israeli airspace.The military declined to comment on how many Iron Dome batteries are currently deployed. But as of 2021, Israel had 10 batteries scattered around the country, each able to defend a territory of 60 square miles (155 square kilometers), according to Raytheon. It is roughly 90% effective, according to Rafael.But it can get overwhelmed if a mass barrage of rockets is fired, allowing some to slip through. While it has performed well so far, the risk could be raised if Hezbollah enters the war. Hezbollah has an estimated 150,000 rockets and missiles.Each missile costs an estimated $40,000 to $50,000, according to the Institute for National Security Studies, a Tel Aviv think tank.The U.S. has invested heavily in the system, helping with development costs and replenishing it during times of fighting.President Joe Biden has said he will ask Congress for $14.3 billion in military aid for Israel. The majority of that would help with air and missile defense systems, according to the White House.“We’re surging additional military assistance, including ammunition and interceptors to replenish Iron Dome,” Biden said.___Find more of AP’s coverage at https://apnews.com/hub/israel-hamas-war。
一键部署OpenClaw
现在手机流量占总流量的60%以上,不做移动端适配等于放弃一半用户。

B | 两种主流方案:响应式设计和独立移动站。 响应式设计,一套代码适应所有屏幕。核心是CSS媒体查询,根据屏幕宽度加载不同的样式。优点是维护成本低,缺点是移动端仍然加载完整的PC页代码。

C | 独立移动站(M站),为手机单独做一套页面。域名用m.yoursite.com或者子目录/amp/。

D | 优点是移动端加载快、体验好,缺点是要维护两套代码。

E | # Nginx识别移动端跳转(如果用独立M站) server { listen 80; server_name www.yoursite.com; root /www/wwwroot/yoursite; # 根据User-Agent跳转到移动版 if ($http_user_agent ~* "(Android|iPhone|iPad|Windows Phone|Mobile)") { return 301 https://m.yoursite.com$request_uri; } } 怎么选?内容站、博客、资讯站用响应式就行,维护简单。电商、工具类网站建议做独立M站,移动端体验更好。 不管哪种方案,记得用Google的Mobile-Friendly Test工具测一下,确保搜索引擎认为你的页面是移动友好的。

F | 这影响搜索排名。
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