parachute opening的用法和樣例：
例句
- Its ripcord can be attached to heavy furniture or a special hook so that the parachute opens automatically after its wearer jumps out a window.
降落傘的開傘索可以綁在重傢具或是特製的鉤子上，帶上這種降落傘的人一旦跳出窗外，降落傘便會自動打開。 - Finally, OL in the varied speed wind tunnel is also investigated.Results show that the actual opening process can be well simulated.
同時，變速風洞的傘衣載荷研究表明，變速風洞可較好地模擬實際開傘情況。
