[ 复数 helicopters 第三人称单数 helicopters 现在分词 helicoptering 过去式 helicoptered 过去分词 helicoptered ]
First, the project of four-rotor helicopter has been decided.
首先,确定了四旋翼直升机的设计方案。
参考来源 - 四旋翼直升机控制问题研究Lastly, Simulation model of helicopter based on SVM was studed.
最后,对利用SVM建立直升机的仿真模型进行了研究。
参考来源 - 支持向量机方法及其应用研究·2,447,543篇论文数据,部分数据来源于NoteExpress
同义词: chopper whirlybird eggbeater
以上来源于: WordNet
N-COUNT A helicopter is an aircraft with long blades on top that go around very fast. It is able to stay still in the air and to move straight upward or downward. 直升机
The helicopter rose into the air.
直升机升上了天空。
The helicopter crashed to earth nearby.
直升机坠毁在附近的地面上。
They were eventually rescued by helicopter.
他们最后被直升机救走了。
Within minutes, a helicopter lifted him from the spacecraft and carried him to a waiting ship.
VOA: special.2009.06.17
In April,the site posted video of an American helicopter strike in Iraq in two thousand seven.
VOA: special.2010.07.31
As the weekend went on, the miracles kept coming the kindness of the scattered police, the 'food-drop' by an Army helicopter, and flowers from the sky.
VOA: special.2009.08.10
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