Improve Chinese Translation

Hi,
ly.shen here. I've glanced through the translation. All of it seems fine—everything is understandable. The only issue is that it doesn't read very fluently; it feels a bit choppy at times.
However, the biggest problem is the layout. In the attached screenshot, you can see the worst case: all the words are squeezed together, and the layout becomes a mess.
Perhaps slightly shrinking the font size, or providing an option to adjust it, would solve the problem.

Here are some slight improvement about translation:

1.
Where: Decoplanner default setting:
Original: 停留时间显示方式 1s 30sec 分钟
Better:停留时间最小步长 1s 30s 1min


2.
Where: Decoplanner default setting:
Original: 开放式换气的PPO2上限
Better: 开放回路的PPO2上限


3.
Where: Decoplanner default setting:
Original: 水密度
Better:水体密度