Trial mass is placed according to the phase Angle and counter weight is decided with influence coefficient.

按测得的相位角放置试重块，由开机测得的幅值影响系数确定配重块重量。

youdao

Iran is conducting a mass trial of about 100 Iranian defendants in its Revolutionary Court.

CNN: U.N. experts say Iran tortured to extract confessions

The mass trial is due to begin in the United Arab Emirates (UAE) of 94 Islamist activists accused of plotting to seize power in the Gulf state.

BBC: UAE 'coup plot' trial of 94 Islamist activists to begin

Rather than recruiting people directly, the 'mass participation' trial relies on members of the public volunteering.

BBC: Can you control what you dream?