China-developed commercial airliner C919 has edged a step closer to takeoff after the planes developer put it through the first high-speed taxi test last Sunday...

2024-07-25 查看详情

It isn’t easy to track down a positive word about the Middle East these days. Then again, Juan Cole is not your typical observer. A professor of history at the ...

2024-07-24 查看详情

The MIT Technology Review published on Wednesday a news report about the first-known experiment to create genetically modified human embryos in the United State...

2024-07-23 查看详情

Were still years away from a Tesla that can deliver you safely to work whilst you doze serenely in the drivers seat, but both the Model S and Model X took a big...

2024-07-23 查看详情

“我们来线上视频进个不会吧。

2024-07-23 查看详情

抽水机蓄能电站电缆布置多样，加装布置工艺拒绝较高，电缆下穿一般要留意以下几点：(1)检查电缆埋管、桥架加装否已加装完好无损，桥架否早已短路(2)检查电缆地下通道否已不具备下穿条件，弯道方位否有充足空间(3)检查与电缆下穿涉及的土建界面否已交付给。

2024-07-22 查看详情