The phrase "a host of engineering" is correct and usable in written English.
It can be used to refer to a large number or variety of engineering disciplines, projects, or concepts.
Example: "The conference will feature a host of engineering innovations that are shaping the future of technology."
Alternatives: "a multitude of engineering" or "a variety of engineering".
Amphibious operations, involving the landing of troops on a hostile shore, involved a host of engineering problems, from the underwater demolition of obstacles to the rapid construction of open-beach dock facilities, such as the prefabricated Mulberry Harbour used to maintain the Normandy landings in 1944.
Glass fiber reinforced plastics are widely used in a host of engineering applications.
In order to reduce noise in a host of engineering applications, fluid flow directions must be changed, high-pressure flowing fluids must be vented, or throttled obstructions of one type or another must be interjected into a duct or pipe flow, since the flow at the boundary of the pipe or duct is a source of flow-induced vibration.
These have been trying times for GM, which last year had to recall nearly 27 million domestic cars and trucks and another 3 million overseas because of a host of dangerous engineering defects.
Human exploration of the solar system brings a host of environmental and engineering challenges.
Ultimately, precise control of metabolic systems has the potential to enable a host of new metabolic engineering and synthetic biology applications for any problem where flexibility of response to an external signal could be useful.
This method is simple in its application and has successfully been used for the solution of a host of crack problems of engineering importance.
And Chinese businessmen are increasingly visible in a host of activities, including timber, engineering and textiles.Official Chinese statistics suggest that trade with Africa, though still meagre compared with other parts of the world, has been rising for several years.
Ever since Google's first expansion to Seattle, a host of team-productivity and engineering-productivity tools have arrived on the scene and made it much easier for teams to work together across geographical boundaries – whether it's Atlassian's HipChat, the more recent Slack, or tools like GitHub.
During the past few decades, Markovian stochastic systems have come to play a vital role in a host of branches of science and engineering applications.
Until now, foreign scholars working in a host of disciplines ranging from aeronautical engineering to immunology had to undergo an extensive security review--known as a Visas Mantis check--every time they traveled out of the United States.
