The phrase "an essential tool that" is correct and usable in written English.
You can use it when describing something that is crucial or necessary for a particular purpose or task.
Example: "In today's digital age, a reliable internet connection is an essential tool that enables effective communication and collaboration."
Alternatives: "a vital resource that" or "a crucial instrument that".
He called the program, which started this year, an essential tool that has helped reduce crime by 5percentt.
But prosecutors, and even some defense lawyers, say that 1001 charges are an essential tool that allow the government to punish witnesses or defendants who mislead investigators.
Tor is an essential tool that is needed by people to do what they do.
Simulation using GATE is an essential tool that allows obtaining the ground truth for such acquisitions and therefore helping in the development and the validation of innovative processing methods such as PET image reconstruction, attenuation correction and motion correction.
From the clinical perspective, ultrasound was seen as an essential tool that had changed pregnancy management.
Therefore, the Atlas is an essential tool that will allow application of systems biology to the field of pancreatic islet research and T1D research in particular.
In recent years there has been a trend to view the Citizens Observatoryy as an increasingly essential tool that provides an approach for better observing, understanding, protecting and enhancing our environment.
We foresee increased comparative analysis of microbial metabolism as more networks become available, akin to the growth of genome sequence comparisons from a curiosity to the essential tool that is BLAST today.
He paid tribute to the army of tens of thousands of conservation volunteers: "They have played a massive role in making this report far more comprehensive than anything done before and knowledge is the most essential tool that conservationists have".
"This is probably the most essential tool that anyone can have in terms of handling their boss," says Katherine Crowley, co-author of Working For You Isn't Working For Me: The Ultimate Guide to Managing Your Boss.
However, to date, the essential tools that may drive such an intervention by measuring the public perspective on PWEs is lacking in China.
