介绍了某型号运载火箭二级燃料箱后底顶盖成形方法改进及工艺试验过程。
The paper introduces the shaping method improvement and technological trial course of bottom cap of certain model of carrier rocket's fuel tank.
韩国教育、科学和技术部长安秉万称，“罗老”号二级火箭在自太空中心发射前后运作正常。
The two-stage Naro rocket operated normally during and after liftoff from the country's space center, Minister of Education, Science and Technology Ahn Byong-man said.
火箭又长又细，上部有点粗，因为它的第二级比固体燃料火箭发动机驱动的第一级要厚。
The rocket is long and slender, and fatter on top because its second stage is thicker than its solid rocket motor-powered first stage.
引述韩国和美国情报部门的报告，该报纸指出，此火箭的第二级落入距离发射点舞水端里3200千米的海域中。
Citing South Korean and US intelligence authorities, the paper reported that the rocket's second stage landed in waters about 1, 984 miles (3, 200km) from the Musudan-ri launch site.
“罗老”号二级火箭的第一级由俄罗斯设计并建造，第二级由韩国负责。
The first stage of the two-stage Naro rocket was designed and built by Russia and the second by South Korea.
固定：瞄准枪瞄准使用二级瞄准按钮不执行在火箭发射器。
Fixed: Aiming with gun-sight using secondary aiming button is not implemented in Rocket Launcher.
它是一种二级、重量15吨固体燃料推进火箭可以改为携带一枚重量半吨的侵彻、高爆弹头，连同专用制导系统一起(一套雷达和图像识别系统)。
It's a two stage, 15 ton, solid fuel rocket that could instead carry a half ton penetrating, high-explosive warhead, along with the special guidance system (a radar and image recognition system).
当第一级烧毁后，沿抛物线的轨道落到地球，而第二级的发动机点火把火箭发射到地球轨道。
After the first stage burns out it falls back to earth along a parabolic path while the engines of the second stage fire to thrust the rocket into an earth orbit.
本文考虑二级火箭在实际允许区域内的最佳质量比问题，得到解的解析表达式。
On the optimum mass ratios of two-stage rocket in the practical permissible region, we get the results analytic expression.
火箭升高了，我们可以看到二级点火。
当达到182公里高度时，第二级火箭自动脱落，速度达到每秒68公里。
When reached 182 km, second stage rocket off automatically, reach a speed of 68 kilometers per second.
CZ - 2c是适用于发射低轨道、质量较大卫星的二级液体运载火箭。
CZ-2C is a two-stage liquid propellant launch vehicle, which is suitable for launching heavier LEO satellite.
不过，第二级发射没有完成燃烧过程，导致火箭落在离预定地点很远的地方。
The second stage, however, failed to complete its burn period and, as a result, fell quite short of where the North Koreans had anticipated that it would land.
能够在电视上观看发射情况的观众可以看到奥德赛从德尔塔II火箭发射升空的远景。火箭的第二级上安装了两台报像机。
Viewers who were able to watch the launch on television could see the lift-off from the perspective of Odyssey's Delta II rocket, which had two video cameras attached to its 2nd stage.
能够在电视上观看发射情况的观众可以看到奥德赛从德尔塔II火箭发射升空的远景。火箭的第二级上安装了两台报像机。
Viewers who were able to watch the launch on television could see the lift-off from the perspective of Odyssey's Delta II rocket, which had two video cameras attached to its 2nd stage.
应用推荐