原计划的发射在起飞前四分钟被取消。
The original planned launch was called off four minutes before blastoff.
航天飞机发射前的倒计时已经开始。
The countdown has begun for the launch of the space shuttle.
定于今天上午哥伦比亚号航天飞机的发射已经被推迟了。
This morning's launch of the space shuttle Columbia has been delayed.
我们发射了另外一颗人造卫星，今天的报纸上宣布了这一消息。
We have launched another man-made satellite, which is announced in today's newspaper.
宇宙中的许多物体是看不见的，但它们发射无线电波。
Many objects in the universe are invisible, but they send radio waves.
它的真正目的是发射和找回飞行中的小型飞机。
Its real purpose is the launching and retrieval of small aeroplanes in flight.
军队仍然控制着电视和无线电的发射塔。
Troops are still in control of the television and radio tower.
不管怎样，谁会想在人口稠密的地区发射火箭呢？
Anyway, who would want to fire streams of rockets in a populated area?
猎鹰9号的首次发射可能会改变人类太空飞行的进程。
The first launch of Falcon 9 could change the course of human space flight.
这个伤口的不同寻常的角度显示，第二枪从更高的地方发射。
The unusual angle of this wound points to the second shooter from a higher level.
这颗卫星是由火箭发射的。
我的意思是，仅仅是发射航天飞机一次再飞回的成本就已经是天价了。
I mean, just taking the space shuttle up and back one time is hugely expensive.
发射的辐射要么被吸收，要么在地球表面反射。
The transmitted radiation is either absorbed or reflected at the Earth's surface.
我们花了一星期时间，跟踪了一颗为日本卡通频道发射的卫星。
We spent a week following a launch of a satellite for a Japanese cartoon channel.
这次成功的发射证明了坚持不懈是多么可贵。
The successful launch was a testament to the value of perseverance.
这会将发现号的发射日期推迟到四月。
美国最后一次航天飞机的发射任务已经开始倒计时。
The countdown has started for the final launch of an American space shuttle.
图中，艺术家设想的太空发射系统点火升空了。
Above, an artist's conception of the Space Launch System blasting off.
印度仅仅通过一次发射行动就发射了创记录数量的卫星。
India has launched a record number of satellites into space in a single mission.
这个设施的主要任务，发射航天飞机，将要结束。
The facility's main mission, launching Space Shuttles, is about to end.
后发星系团X射线发射的性质仍在查证中。
The nature of Coma's X-ray emission is still being investigated.
这是向宇宙发射信号的开始。
This is the beginning of sending the signal to the universe.
不过上面是最近发射的WISE望远镜拍的红外图像。
The above image, however, was taken in infrared light by the recently launched WISE telescope.
太阳耀斑发射出的什么东西会有这种效果呢？
What could the flare send forth that could have such an effect?
事实上，此设备的98%起到光发射作用。
每次烟花表演，我至少准备三种不同的发射方案。
We will also have at least three different methods of firing the show.
大部分的成本是在发射阶段省下来的。
大部分的成本是在发射阶段省下来的。
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