详细解释:n. 开伞索
英语解释：
名词 ripcord:
a cord that is pulled to open the gasbag of a balloon wide enough to release gas and so causes the balloon to descenda cord that is pulled to open a parachute from its pack during a descent详细解释：
rip.cord
n.（名词）A cord pulled to release the pack of a parachute.开伞索：用力拉来松开降落伞包的绳索A cord pulled to release gas from a balloon.放气裂幅拉绳：用力拉来释放汽球里气的绳索