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1、zodiac sign───星座；生肖；黄道十二宫
2、positive sign───n.（数）正号，加号（同plussign）；n.正号
3、sign───n.迹象；符号；记号；手势；指示牌；vi.签署；签名；vt.签署；示意
4、language───n.语言；语言文字；表达能力
5、sign language───n.手语；手语；符号语言
6、sign language lawyer───手语律师
7、american sign language───美语手语；[医]美国聋哑人手势语
8、the sign───标志
9、prohibitory sign───禁止标志
1、Because the FSV recognition framework employs the image coordinate of feature points, it is a way to viewpoint free sign language recognition from viewpoint dependent features.───由于是直接基于特征点的图像坐标进行识别，此框架提供了一种使用视角相关特征而实现视角无关手语识别的可能性。
2、Experiments show the efficiency of the proposed three methods. (B) Viewpoint free sign language recognition under short-duration data deficiency.───实验显示了这些方法的有效性。二是短时数据缺失下稳定而有效的视角无关手语识别方法研究。
3、The Expo Site is equipped with wheelchair-accessible facilities. Video Sign language and free rental of wheelchairs are available for the disabled.───园区内为残疾人士提供无障碍设施，并提供视频手语和手推轮椅免费借用等服务。
4、The thesis focuses on the following two aspects: (A) Viewpoint free sign language recognition based on viewpoint dependent features.───重点研究如下两方面内容：一是基于视角相关特征的视角无关手语识别研究。