As a carrier, you must maintain all aircraft accessibility features in proper working order.

承认人必须维持所有飞机便利性要求在正常工作的状态。

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It seems that as of this writing, the unreleased custom firmware is already in proper working order and boots perfectly.

在撰写本文的时候，这个尚未放出的自制固件已经可以正确有序的运行，完美的引导了。

youdao

In the same way, it is essential that the front fork is in proper position and in working order.

以同样的方式，这是至关重要的前叉是在正确的位置和工作秩序。

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"When we first started we were just going to build something to show it would work, but fairly quickly Donald realised that in order for it to have any impact it needed to be a proper working system, and we actually built the network which went live at the start of 1970, " he said.

BBC: Celebrating 40 years of the net