"broaden the capability" is a correct and usable phrase in written English.
You can use it to describe the act of making something more powerful or capable. For example, "We need to broaden the capability of our IT department to better serve our customers."
"We look for something that broadens the capability of the existing faculty and can fill a niche".
Broadening the capability of Nasdaq's SOES, or small market execution system, SuperSOES gives institutional clients anonymity, allowing them to meet a buyer or a seller without a market maker and trade larger orders at a competitive price something they couldn't do before.
It was the gateway through which you broadened the capabilities of your mobile phone.
The largest region of diversity among the strains examined is 22.6 kb and harbours several genes predicted to work synergistically with chromosomally encoded pathways to broaden the metabolic capabilities of strain JCM1046.
King said: "As a highly qualified engineer with considerable international business experience, Charles will strengthen and broaden the strategic and operational capabilities of the business as a welcome and valuable addition to the leadership team".
The survey was challenging due to its goals of collecting comprehensive acquisition information and including data from extant sources to broaden the survey's research capabilities.
In an end-state where AngelList's crowdfunding service has proven viable, perhaps they'll find ways to broaden the Crowd's investment capabilities to handle larger amounts, follow-on commitments, etc.
Attention is also focusing on broadening the moles' capabilities to function as the primary machine of the whole tunneling system.
The paper presents a method of machining hypocycloidal inner and outer polyhedrons on lathes and this significantly broadens the manufacturing capabilities of the latter.
In the near future, Indonesia EEC will establish a joint venture company with a reputable local company who has experience and capability in performing EPC works of power projects, as well as financial capability, and will broaden the coverage by expanding into additional service areas.
