词汇	方向角
释义	方向角医direction angle
随便看	Introduce a fine variety introduce a football betting duty introduce a freshman to campus life introduce a guest introduce a guest into a parlour introduce a guest into a room introduce a key introduce a lady introduce a lecturer to an audience introduce a line introduce a little alcohol introduce alternative introduce amendments introduce among introduce a motion introduce and cultivate introduce and domestication introduce and inquire into introduce and popularize introduce a needle introduce an entirely new practice introduce an era introduce a new concept introduce a new concept in architectural design introduce a new course