China launched a new high-resolution Synthetic Aperture Radar (SAR) imaging satellite from the Taiyuan Satellite Launch Center in northern Shanxi Province on Wednesday.
本周三，中国在山西太原卫星发射中心发射一颗高分辨率合成孔径雷达成像卫星。
The Gaofen-3 satellite was launched off on the back of a Long March 4C rocket at 6:55 a.m. Beijing time, according to the center. It was the 233rd flight mission by a Long March carrier rocket.
As China's first SAR imaging satellite that is accurate to one meter in distance, it covers the globe with an all-weather, 24-hour observation service and will be used for disaster warning, weather forecasting, water resource
assessments, and the protection of
maritime rights.
Compared with optical imaging satellites, Gaofen-3 will better perform disaster monitoring as the SAR imaging satellite is capable of imaging in severe weather conditions as it uses microwave transmission.
"The launch of Gaofen-3 is expected to reduce
dependence on data provided by foreign microwave imaging satellites," said Jiang Xingwei, deputy chief engineer of Gaofen satellite application system.
With 12 imaging modes, Gaofen-3 has the most imaging modes in the SAR imaging satellite family. The high-definition observation satellite is capable of switching freely between various imaging modes, taking wide pictures of both earth and sea, and
detailed photographs of specific areas.
According to Yu Weidong, deputy chief engineer of Gaofen-3 satellite system payload, Gaofen-3's
spatial resolution ranges from one meter to 500 meters and its largest viewing swath is 650 kilometers.
相关单词：synthetic
synthetic解释：adj.合成的，人工的；综合的；n.人工制品
synthetic例句：
We felt the salesman's synthetic friendliness.我们感觉到那位销售员的虚情假意。
It's a synthetic diamond.这是人造钻石。
相关单词：aperture
aperture解释：n.孔，隙，窄的缺口
aperture例句：
The only light came through a narrow aperture.仅有的光亮来自一个小孔。
We saw light through a small aperture in the wall.我们透过墙上的小孔看到了亮光。
相关单词：radar
radar解释：n.雷达，无线电探测器
radar例句：
They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。
相关单词：assessments
assessments解释：n.评估( assessment的名词复数 )；评价；（应偿付金额的）估定；（为征税对财产所作的）估价
assessments例句：
He was shrewd in his personal assessments. 他总能对人作出精明的评价。 来自《简明英汉词典》
Surveys show about two-thirds use such assessments, while half employ personality tests. 调查表明，约有三分之二的公司采用了这种测评；而一半的公司则采用工作人员个人品质测试。 来自百科语句
相关单词：maritime
maritime解释：adj.海的，海事的，航海的，近海的，沿海的
maritime例句：
Many maritime people are fishermen.许多居于海滨的人是渔夫。
The temperature change in winter is less in maritime areas.冬季沿海的温差较小。
相关单词：dependence
dependence解释：n.依靠，依赖；信任，信赖；隶属
dependence例句：
Doctors keep trying to break her dependence of the drug.医生们尽力使她戒除毒瘾。
He was freed from financial dependence on his parents.他在经济上摆脱了对父母的依赖。
相关单词：detailed
detailed解释：adj.详细的，详尽的，极注意细节的，完全的
detailed例句：
He had made a detailed study of the terrain.他对地形作了缜密的研究。
A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。
相关单词：spatial
spatial解释：adj.空间的，占据空间的
spatial例句：
This part of brain judges the spatial relationship between objects.大脑的这部分判断物体间的空间关系。
They said that time is the feeling of spatial displacement.他们说时间是空间位移的感觉。
