The phrase "set lips" is correct and can be used in written English.
It generally means to press the lips firmly together. For example, "She was so angry that she set her lips and said nothing."
They resembled each other more than any mother and son I'd ever seen — both with identical long, narrow faces, broad foreheads, tightly set lips.
Arrogant, a spoiled eccentric, game to pick a fight but eager for respect, Girodet painted himself as a glowering dandy in a hat (you can't tell he was losing his hair), jaw set, lips pouting.
The severity of a Napoleonic nose and firmly set lips were softened by expressive brown eyes".
But his breezy, loping lines belie a watchful intelligence; the poems' ambiguities feel rooted in the meditations of a reflective individual amid everyday things — one who feels a tug of meaning at the sight of two ketchup bottles set lip to lip in a Second Avenue deli, acrobatic metaphors of balance.
According to the rules set, lip rounding would be unspecified for the consonants, leaving these targets to be determined from the vowel context by linear interpolation from the unrounded, across the consonant cluster, to the rounded.
Use your fingers to set your lips into place until you get the positioning correct.[3].
This will help with posture and you will know how to set your lips the same way when you get the note right.
Rather, with tight-set lips and pensive eyes, they scanned the pressing-in crowd for their families, falling into wordless and deeply private embraces when they found them.
We also set operatorname{Lip}(Omega):=bigcup_{T=1}^{infty} operatorname{Lip}(Omega_{T}).
In particular, we set mathfrak{Lip}_{0} X,mathbb{K}):= X^{sharp} and call (X^{sharp}) the pseudo-dual space of X; this space contains the usual dual space (X^{ast}) as a closed subspace.
It is often said that PEEP should be set above LIP to avoid derecruitment during expiration.
