短語(yǔ)詞組短語(yǔ)burn -through-point 燒穿點(diǎn)relative burn -through range 相對(duì)燒穿距離riser burn -through device 長(zhǎng)控制繩燒斷裝置control of burn -through point 燒結(jié)終點(diǎn)控制 返回 burn through