The Delta IV Heavy is the largest of the Delta series, packing the punch of three rocket boosters instead of the usual one.
Delta4型重型运载火箭是Delta系列中最庞大的，它配备了三支火箭推进器，而一般型号只有一支。
The Delta IV Heavy is the largest of the Delta series, packing the punch of three rocket boosters instead of the usual one.
DeltaIV重型运载火箭是Delta系列中最大的，配备三个助推火箭。
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.
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。
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