While the rocket is inside, technicians will remove and inspect suspected helium system components, update any faulty hardware, and perform other work. That includes replacing batteries in the flight termination system — the emergency system that can destroy the rocket if it strays off course — swapping out a seal on the line that feeds liquid oxygen into the rocket, refreshing items inside Orion, and giving the closeout crew more practice sealing the capsule.
具体到邮储银行身上，内控“防线”急需加固。
，这一点在旺商聊官方下载中也有详细论述
when the guess is larger you use a variable size make and allocate，推荐阅读旺商聊官方下载获取更多信息
get desiredSize() { return closed ? null : 1; },