WENCHANG, Hainan, July 17 -- The fourth Long March-5 rocket, to be used to launch China's first Mars exploration mission, was vertically transported to the launching area at the Wenchang Space Launch Center in south China's Hainan Province on Friday.
The carrier rocket, coded as Long March-5 Y4, is planned to be launched in late July or early August, according to the China National Space Administration.
Space engineers have conducted a general assembly and tests on the rocket, after it was transported to Wenchang at the end of May.
It took about two hours to vertically transport the large rocket to the launching area of the center Friday morning. Final examinations and tests will be conducted on the rocket before the launch.
This is the first time the Long March-5 carrier rocket, currently China's largest launch vehicle, to be put into practical use after three experimental launches. The rocket is expected to send the Mars probe into the Earth-Mars transfer orbit, which is also the first such mission to be carried out by China's carrier rocket.
China's first Mars exploration mission Tianwen-1 aims to complete orbiting, landing and roving in one mission, and to obtain scientific exploration data on Mars.
英语四级备考:常考高频词汇 第6组
英语四级考试词汇:大纲词汇(40)
英语四级考试词汇备考笔记(14)
英语四级考试词汇:大纲词汇(37)
英语四级考试词汇备考笔记(15)
英语四级冲刺备考:做练习记单词(14)
英语四级备考:常考高频词汇 第1组
英语四级考试必备词汇辨析(6)
大学英语四级词汇试题与考点解析(3)
大学英语四级词汇试题与考点解析(20)
备战四级听写,必背的重点单词、短语知多少?
大学英语四级考试同义词辨析(9)
6月英语四级冲刺备考:做练习记单词(13)
英语四级冲刺备考:做练习记单词(1)
英语四级备考:常考高频词汇 第3组
英语四级备考:常考高频词汇 第4组
6月英语四级冲刺备考:做练习记单词(5)
大学英语四级词汇试题与考点解析(17)
英语四级冲刺备考:做练习记单词(9)
6月四级写作核心点拨
英语四六级考试必备词汇辨析(5)
大学英语四级词汇试题与考点解析(8)
大学英语四级词汇试题与考点解析(13)
英语四级冲刺备考:做练习记单词(8)
四级考试必备基本功:高频词组(15)
英语四级写作常用经典句式:It 结构
四级考试必备基本功:高频词组(13)
英语四级冲刺备考:做练习记单词(10)
英语四级考试历年高频短语:名词与介词的搭配
大学英语四级词汇试题与考点解析(18)
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |