“piggyback board”的概念、定义、翻译、参考文献-科学参考

单词	piggyback board
释义	piggyback board [`pig·ē´bak ´bȯrd] ^ELECTRONICS A small printed circuit board that is mounted on a larger board to provide additional circuitry.
随便看	hour angle hour-angle difference hour circle hourglass hourglass screw hourglass stomach hourglass worm hour hand hourly observation hour-out line hour wheel houseboat housed joint house drain housefly Householder's method housekeeping housekeeping gene housekeeping run house physician house sewer housing Houskeeper seal Houston Automatic Spooling Processor hovercraft

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。