1)rotary-type fog horn,转动式雾角2)hand operated dual horn,手动双雾角3)active water spray,主动式水雾4)Multiple driving high angle transfer belt conveyor,大倾角转载式多点驱动5)cirscal meter,大转角动圈式电表6)tilt angle,倾角;转动角
用法例句
Experimental study of explosion suppression by active water sprays in large-scale duct;
