"a valuable complement" is a correct and usable phrase in written English.
It can be used to describe something that adds value or completeness to something else. Example: "The new team member brings a valuable complement of skills to the project, enhancing our chances of success."
Sharon M. Oster, dean of the Yale School of Management, says teachers with real-life experience offer a valuable complement to the academic curriculum.
Unlike some midwives, she welcomed technology as a valuable complement to the traditional skills she practiced; in Stockholm, for example, she studied a vacuum-extraction delivery method.
A valuable complement to the national seashore is the state-maintained Cape Cod Rail Trail, a 25-mile former railroad right-of-way running from Dennis to Wellfleet, with a spur going south to Chatham.
At its core and at its best, Bamford's book is a schematic diagram tracing the obsessions and excesses of the Bush administration after 9/11, a valuable complement to the accumulating narratives of torture abroad and legalistic sophistry at home.
The partners sold their stake in November 2000 to Corus Entertainment of Toronto, which regarded film production as a valuable complement to its radio stations, specialty TV channels and entertainment Web sites.
Methylene blue could be used as a valuable complement in refractory hypotension treatment.
In order to overcome these limitations, numerical approaches can be a valuable complement.
Therefore, CFD techniques proved to be quite a valuable complement of experimental studies.
They may offer a different selectivity from chromatographic techniques and are therefore often a valuable complement toward existing techniques.
As a valuable complement, MBMS using single-photon ionization (PI) by vacuum ultraviolet radiation permitted isomer identification as well as independent concentration information under similar flame conditions.
It enables a full automatization of the process of finding trees of mechanical system graphs and, therefore, it constitutes a valuable complement to topological methods.
