1.Tax laws were discriminatorily enforced, conspicuous surveillance and visible "investigative" interviews with activists, and grand jury subpoenas.
歧视性,明显监视,以及可见“调查”,与活动成员会面,和大陪审团传票。
2.BACKGROUND: Various investigative tools, including direct visualization with stroboscopy and indirect observation with glottography, have been widely used for the observation of vocal fold vibration.