“美国电影分级制度”的概念、定义、翻译、参考文献-科学参考

单词	美国电影分级制度
释义	美国电影分级制度 Encyclopedia 文学〔国际电影政策与法〕释 USA movie rating system美国电影分级制度由美国电影协会（Motion Picture Association of American，MPAA）负责组织的由家长们组成的委员会，根据电影的主题、语言、暴力程度、裸体程度、性爱场面和毒品使用场面等，代表大部分家长可能给予的观点对电影进行评价的制度。
随便看	directional gene knock-out (editing) on aquatic animal directionality directionality in translation directional light source directional limit directionally intersected wells directionally solidified columnar superalloy directionally solidified eutectic superalloy directionally solidified superalloy directional machine directional mutation directional partial derivative directional pattern directional pattern of microphone directional pinpoint blasting directional power protection directional quantization directional reflectomography directional selection directional selectivity directional sensor network directional solidification directional supplementation and draining method directional survey telemetry directional valve

科学参考收录了854744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。