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21 transfer
передача; перевод; перелёт ( с одной орбиты на другую) ; переносить, передавать; переводить (на др. орбиту) ; перекачивать ( топливо)noncoplanar circular orbits transfer — переход [перелёт] между круговыми неко(м) пленарными орбитами
optimal finite-thrust orbit transfer — оптимальный перелёт с одной орбиты на другую с ограниченной тягой
radiant (heat) transfer — лучистый теплообмен, теплопередача излучением
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22 velocity
скорость, см. тж. rate, speed; вектор скоростиaverage jet exhaust velocity — среднее значение скорости [осредненная скорость] истечения реактивной струи
characteristic velocity required for rendezvous — потребная характеристическая скорость для обеспечения встречи (на орбите)
hyperbolic excess passage velocity — гиперболическая избыточная скорость прохождения [пролета] (планеты)
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