Pilot position for most of the maneuvers shall be from the position of tail - in towards the pilot 执行大多数的动作时，直升机的尾部需朝向操控者。
2.
The thesis is based on the human concerns . it has achieved a pilot position in researches concerning preschool educational theory studies 本论文立足于人文关怀，对幼儿性教育做了深入研究，填补了幼儿教育理论研究中的空白。
