| 单词 | civilian helicopter |
| 释义 | civilian helicopter The civilian helicopter pilot was being questioned for taking on passengers without a security check and deviating from the filed flight plan. Times, Sunday Times Defence chiefs said the red alert was caused by a civilian helicopter issuing a hijack mayday by mistake. The Sun The case centered on a civilian helicopter, which he said to have owned during the mid-1990s. Retrieved from Wikipedia CC BY-SA 3.0 The landing gear can sustain a touchdown with a sink speed of 9.5m/s, compared with the 2m/s for a civilian helicopter. Retrieved from Wikipedia CC BY-SA 3.0 The group used civilian helicopters. Times, Sunday Times |
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