折には => when the chance to 〜 comes N2
~のを => Nominalize verbs N5
Nominalization
[折「おり」]には => When A, at the time A N2
Time, Situation
...を...みる => judging from; seeing that ~ N4
Deduce
...を...にする => to make something ~ N4
Purpose, target
姿を見せる => figure; appearance N3
Ability
…ばあいをのぞいて => Except for N2
Exception
ものを => Although A, (unfortunate result) B N1
Contrast/Surprise
...が...を...みせる => make it look like... N4
Base, base
を…とする => is considered, is regarded as N2
Consider it
~ものを      => But, Although, If only, I wish I had N1
~のぼる  => To increase N2
Reach level