The phrase "understanding and command" is correct and usable in written English.
You can use it when describing the knowledge, skills, or abilities someone has in a particular domain. For example, "John has a deep understanding and command of web development."
They handled it professionally, attuning themselves to Mr. Nelson's drifting cadences with an increasing understanding and command.
But underneath it all, it's about this: our culture's excruciatingly dangerous claim to have such complete understanding and command over nature that we can radically manipulate and re-engineer it with minimal risk to the natural systems that sustain us.
Students will learn speed-reading techniques and explore more subtle distinctions in Chinese language use, such as formal vs. informal styles and word choice, toward developing a more sophisticated understanding and command of the language.
In the review of Decapitated's debut album, Allmusic said "the band has a seemingly effortless understanding and command of... their instruments and... the songwriting is extremely solid; even in the first listen".
Iterative user-centred system improvements, combined with additional training in the use of technology, would allow primary care doctors to gain an increased understanding, familiarity and command of the range of EMR system functionalities.
Iterative user-centred improvements combined with additional training in the use of technology would promote an increased understanding, familiarity and command of the range of functionalities of electronic medical records among primary care doctors.
The vision of talking to your computer like in Star Trek and it fully understanding and executing those commands are about to become reality in the next 5 years, not just explicitly but ambiently.
(Oxford University Press. 2004) and Understanding Capitalism: Competition, Command and Change (Oxford 2004).
Understanding the command-and-control (C&C) protocol used by a botnet is crucial for anticipating its repertoire of nefarious activity.
At times, he reminded me of [Atlanta's] Matt Ryan with his pocket feel and command, his understanding of route concepts, and his good but not high-level arm strength.
Researchers are working to make robots better at understanding commands and collaborating.
