The phrase "an essential base" is correct and usable in written English.
It can be used when referring to a fundamental or necessary foundation for something, such as a concept, argument, or system.
Example: "In order to build a successful marketing strategy, understanding customer behavior is an essential base."
Alternatives: "a crucial foundation" or "a fundamental basis".
As well as offering an excellent grounding in comparative private law, this book is an essential base for further research.
Hence, a static load model is developed in this study as an essential base for realistic stability studies.
Washington considers Okinawa well situated to provide an essential base of operations in a region where security concerns -- underscored by the standoff with China -- are gaining importance.
This work provides a reliable method for P. chrysogenum metabolomics and will be an essential base for metabolic engineering of industrial processes.
An important aspect of the risk assessment of ENPs is to understand the interactions of ENPs with plants, an essential base component of all ecosystems.
This could have a huge impact as innovation has played a critical role in the unearthing of new open data initiatives, with a number of businesses having emerged over the past couple of years, such as transport app Citymapper, consultancy firm Geolytix, data analysts Spend Network and food marketplace Foodtrade, using public data as an essential base for their core proposition.
These mapped ESTs will promote the analysis of barley genome structure and are an essential foundation for genome sequencing based on high quality genome libraries.
But in recent years the Pakistani Taliban have concentrated on battling the Pakistani government, extending a domain that has not only threatened Pakistan but has also provided an essential rear base for the Taliban insurgency in Afghanistan.
Uzbekistan has provided the US and UK with an essential military base for operations in neighbouring Afghanistan, and receives more than $100m£53m3m) a year in American aid, for being an ally in the "war on terror".
Had Britain capitulated to Hitler, the United States would have been deprived of an essential forward base for its subsequent involvement in the European and North African theaters.
Manna Cosmetics' signature line also includes Camera Ready, an essential makeup base; Sheer Glo, an incandescent liquid to give skin a youthful glow; and a Lash Primer that enhances and conditions lashes.
