In the 1970s and 1980s, Yamaha entered the field of electronic musical instruments and successively produced electronic keyboards, synthesizers, and digital synthesizers.

在20世纪70年代和80年代，雅马哈进入了领域，并相继产了键盘、和数字。

Maps and other electronic instruments are used in navigating the plane – in getting the plane to go from one place to another, in making sure the plane goes to the right place.

地图和其他仪用于飞机导航——让飞机从一个地方飞到另一个地方，确保飞机飞到正确的地方。