英语词汇“逆计数”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	逆计数
释义	逆计数 nì jì shù由大到小倒着数的时间计数方法。发射宇宙飞行器时，为引起发射人员高度注意，一般从发射前一小时起，指挥部以分为单位报时；从发射前五分钟起，以秒为单位报时。可随时告诉人们离运载火箭点火时刻的时间间隔。逆计数法在其他场合也被采用。
随便看	vertical communication flow vertical commutating fin vertical compaction vertical comparator vertical comparison vertical compartment mode vertical competition vertical complementarity problem vertical complementary transistor vertical complex vertical compliance vertical component vertical-component vertical component detector vertical component effect vertical component of forces vertical component of group velocity vertical component of magnetic field verticalcomponentseismograph vertical component seismograph vertical composite plate vertical composition vertical compound steam turbine vertical compound turbine vertical-compound turbine