All it requires are some minor changes to the front undercarriage .
唯一要做的不过是对前起落架做一些微小的改动。
But actually preventing someone slipping into the undercarriage depends on checks and procedures that are not always present , shanks warns .
但是，shanks警告称，要防止一个人溜进起落架舱，需要一些非常规的检查和程序。
Four years prior to that , another hidden passenger fell from the undercarriage of a plane on to a gasworks close to the store .
而在那一事件四年前，在店铺附近的煤气厂也发现了从飞机起落架上坠落的另一偷渡客。
The undercarriage compartment of a plane is equipped with neither heating , oxygen nor pressure , all of which are crucial for survival as the altitude rises .
飞机的起落架舱并没有任何暖气、供氧或加压装置，而这些因素在高度上升后攸关生死。
This indicated to the experts a tyre blowout during the take-off role possibly causing damage to the undercarriage with the subsequent debris piercing a fuel line or tank .
