16.The thickened flap/speed brake tests had been encouraging, so balsa wood strips were reinstalled on both the flap/speed brake and the elevons.
增厚的副翼/刹车片的测试令人满意,于是轻木条又被重新安装到了副翼/刹车片和升降舵辅助翼上去。
17.It expresses their rootedness and collective memory, and preserves their future by encouraging development and openness towards others – an element essential for the construction of peace.