operation platform短语¹⁴⁴⁹⁷²⁺² 基本例句 操作平台 Methods: This device, driven by high-pressure nitrogen air, was consisted of impact unit, laser speed-measure meter, trigger unit, operation platform and information record unit. 方法：该系统由撞击致伤系统、激光测速装置、激发装置、可调载物台、以及测试系统等组成，采用高压氮气驱动。 cnki