"maintain character" is correct and usable in written English.
You can use it to refer to someone staying true to their personality or morals, or to a situation staying the same. For example, "He was determined to maintain character in the face of adversity."
"It's a classic battle between private-property rights and the ability to do what you wish, versus trying to maintain character of certain communities," Parness said.
It's been known for actors who completely mess up their lines to still win the role if they maintain character, improvise clever "saves", use humor, or simply remain poised and confident in the face of disaster.
The proposal algorithm can perform with only two antenna elements while maintaining character of MIMO.
The persistent element refers to the game engine maintaining character activity after the player has logged off — supporting an unbroken simulation.
Simmons [ 80] argued that the primary homology assessment step is an insurmountable requisite for phylogenetic analyses because it is a guarantee for maintaining character independence.
The above results demonstrated that T24 sphere cells maintained characters of CIC.
Some dancers appear to maintain a character, or conspicuously drop out of character.
Can La Paz maintain its character, sustain the quality of life for its inhabitants and continue to prosper as the region grows?
Because we want to construct the BAC library to conserve genomic character of Wuzhishan miniature pig, the fibroblast must maintain diploid character similar with the cells in vivo.
Admittedly, there are also works where the variations maintain the character of their theme.
Admittedly, there are also works where the variations maintain the character of their theme.
