board and board  两舷相接; 两舷相靠; 两舷平行

board by board  额刚毛; 两弦相接; 两舷相接

board to board  舷靠舷

board to board connector  板对板连接器

board-to-board connector  板对板连接器

on-board color alarm board  机载彩色告警板

printed-circuit board(PCB)(PC board)  印刷电路板

section for gangway board and diving board  跳板及跳水板型材

a pencil of the planes  平面束

algebraic pencil  代数束

aluminum ring hood of the pencil  铅笔铝箍环

angle pencil of ray  宽光束

antenna pencil-beam  笔形束射天线

anti-mist pencil  防雾铅笔

Astigmatic light pencil  象散光锥

astigmatic pencil  象散光束

atomizer eyebrow pencil  雾化眉笔

automatic eye-brow pencil  自动眉笔

axial pencil  平面束