Uncompacted location and grouting saturation degree in the zone of anchorage bar are the two main parameters for judging rock bolts quality.是什么意思_Uncompacted location and grouting saturation degree in the zone of anchorage bar are the two main parameters for judging rock bolts quality.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句