large-aperture英'lɑːdʒæp'ətʃər美'lɑːdʒæp'ətʃərCOCA¹³⁷⁷⁵² 基本例句 n.大孔径光学系统¹⁰⁰ The principles of pulse- front distortion's production and its possible sources in a large-aperture short- pulse laser system are described. 阐述了短脉冲激光装置中脉冲前沿畸变效应的产生机理和可能的畸变源。 dictall