His finger is poised over the Manual Fire button in case the thrusters don't kick in at the right instant, which could cause the Soyuz to skip off the edge of the atmosphere like a stone on a pond.
他的手指悬在手动启动按钮上，以防推进器不能立刻启动。如果没能正常启动，联盟号就会像投入池塘的石子一样，在大气层上方消失不见踪影。
His finger is poised over the Manual Fire button in case the thrusters don't kick in at the right instant, which could cause the Soyuz to skip off the edge of the atmosphere like a stone on a pond.
他的手指悬在手动启动按钮上，以防推进器不能立刻启动。如果没能正常启动，联盟号就会像投入池塘的石子一样，在大气层上方消失不见踪影。
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