The phrase "an essential technique in" is correct and usable in written English.
It can be used when discussing a fundamental method or approach within a specific field or context.
Example: "Mastering time management is an essential technique in achieving academic success."
Alternatives: "a crucial method in" or "a vital skill in".
Replication will be an essential technique in this environment, providing data availability to the system.
Positron emission tomography (PET) is an essential technique in many clinical applications such as tumor detection and brain disorder diagnosis.
Additionally, the technology of printing biomaterials is drawn upon drug delivery systems, which have also become an essential technique in tissue biofabrication in recent years.
In this regard, quantitative reverse-transcriptase polymerase chain reaction (qPCR) has emerged as an essential technique in our efforts to characterize alterations in gene expression brought on by exposure to alcohol.
The authors in [39] investigated the VM provisioning as an essential technique in cloud computing.
Fluorescence is an essential technique in the area of chemical, biological, and life science field due to its optical sensitivity and the extensive range of dye molecules.
Optical heterodyne detection is an essential technique used in high-accuracy measurements of the frequencies of optical sources, as well as in the stabilization of their frequencies.
Cultivation of primary cells is an essential technique for the in vitro study of a wide variety of cell types from many species.
Shotgun sequencing of environmental DNA is an essential technique for characterizing uncultivated microbes in situ.
As the device geometry shrinks to the deep sub-micron region, chemical mechanical polishing (CMP) planarization has become a more essential technique in advanced ULSI process.
Basically, space-time adaptive processing (STAP) is an essential technique to detect slowly moving targets in strong clutter background [3 6].
