launch countdown造句

In the original footage, the silo is " destroyed " by an incoming " attack " just moments before launching its missiles, which is why the final seconds of the launch countdown are not seen in this movie.
Dyneley's countdown was reused in the first trailer for the series'2015 reboot " Thunderbirds Are Go ! ", as well as its opening sequence, and is also used for the launch countdown for the various Thunderbirds in the episodes.
Launch of Apollo 1 was planned for February 21, 1967, when the crew entered the spacecraft on January 27, mounted atop its Saturn IB booster on Launch Pad 34 at Cape Kennedy, for a " plugs-out " test of the spacecraft, which included a rehearsal of the launch countdown procedure.
Therefore, to reduce the risk of failure and the cumulative effects of load, the vessels were maintained at 80 percent of the operating pressure as late in the launch countdown as possible, and the launch pad was cleared of all but essential personnel when pressure was increased to 100 percent.
An example of Tewksbury's use of cross-talk is the fourth episode, " Countdown ", written by David Duncan, which chronicles the Douglas family's attempts to wake up, prepare for the day, have breakfast, and get out of the house by a common, agreed-upon time, all carefully synchronized to a televised rocket launch countdown to comical and often ironic effect.
It's difficult to find launch countdown in a sentence. 用launch countdown造句挺难的

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