![Why are aircraft engines monopolized by foreign countries?](/img/0.gif)
13:08
День назад
![How is the Chang'e 6 return capsule insulated?](/img/0.gif)
4:32
День назад
![How difficult is it to build a nuclear submarine?](/img/0.gif)
13:44
2 дня назад
![Why does the 055 destroyer only have one main gun?](/img/0.gif)
12:24
14 дней назад
![What exactly is on the far side of the moon?](/img/0.gif)
3:22
14 дней назад
![Why did India’s high-speed rail screw Japan so badly?](/img/0.gif)
10:06
14 дней назад
![How precisely polished are the mirrors of the James Webb Space Telescope?](/img/0.gif)
4:30
21 день назад
![Why hasn't the United States been able to build another Saturn V rocket until now?](/img/0.gif)
3:28
21 день назад
![How advanced is the J-20’s phased array radar? It easily outclasses the F-35!](/img/0.gif)
9:56
Месяц назад
![Can China catch up with the US in aerospace technology? Where are the gaps?](/img/0.gif)
20:21
Месяц назад
![How precisely polished are the mirrors of the James Webb Space Telescope?](/img/0.gif)
3:27
Месяц назад
![Is the Chinese Space Station falling behind the West by nearly 300 tons?](/img/0.gif)
17:02
Месяц назад
![How advanced is the Tiangong Space Station’s Robotic Arms?](/img/0.gif)
3:01
Месяц назад
![How awesome is China’s Baihetan Hydropower Station?](/img/0.gif)
13:15
Месяц назад
![How difficult is it to train an F1 driver?](/img/0.gif)
2:56
Месяц назад
![Why does China rely on importing artificial blood vessels?](/img/0.gif)
12:00
Месяц назад
![Why have Chinese diesel engines been monopolized by foreign countries?](/img/0.gif)
4:26
Месяц назад
![Why are aircraft carrier arresting cables so expensive?](/img/0.gif)
24:09
2 месяца назад
![What are the antennas on Chinese aircraft carrier?](/img/0.gif)
3:08
2 месяца назад
![How advanced is the island of China's Fujian Aircraft Carrier ?](/img/0.gif)
3:35
2 месяца назад
![How difficult is chip manufacturing?](/img/0.gif)
20:43
2 месяца назад
![How does the missile turn at right angles in the air?](/img/0.gif)
3:07
2 месяца назад
![Why do fabs use FOUP system to transport wafers?](/img/0.gif)
2:26
2 месяца назад
![Why are high-end Japanese machine tools so impressive?](/img/0.gif)
5:51
2 месяца назад
![Why doesn't China develop space shuttle?](/img/0.gif)
5:22
2 месяца назад
![How to prevent rocket engines from melting at high temperatures?](/img/0.gif)
3:51
2 месяца назад
![Diesel engine technology is mastered by foreign countries, how can China break the situation?](/img/0.gif)
6:56
3 месяца назад
![NMR has no radiation, so why does the NMR room have a heavy door?](/img/0.gif)
3:00
3 месяца назад
![How powerful is an NMR machine? Why can it be monopolized by foreign countries?](/img/0.gif)
4:43
3 месяца назад