The phrase "a very efficient technique" is correct and usable in written English.
You can use it when describing a method or approach that achieves a desired outcome with minimal waste of resources or time.
Example: "In our research, we discovered that using a very efficient technique for data collection significantly improved our results."
Alternatives: "an extremely effective method" or "a highly productive approach."
A very efficient technique for encoding sources without needing to know their probable occurrence was developed in the 1970s by the Israelis Abraham Lempel and Jacob Ziv.
The method provides a very efficient technique for the developlllent of maximally permissive compiled supervisors for Petri nets based DES.
Rectification is a very efficient technique for gas liquid separation and has being widely applied in the fields of chemical, petrochemical engineering, etc.
The results obtained are accurate which show that variational iteration method is a very efficient technique in the analysis of elastic stability problems.
The results presented here definitely prove that the SLR is a very efficient technique able to measure spin period of the geodetic satellites.
Planning as satisfiability is a very efficient technique for classical planning, i.e., for planning domains in which both the effects of actions and the initial state are completely specified.
It has been observed that the GAs are very efficient technique to estimate the design parameters of hybrid single channel PVT module.
The improved multifractal measure is very efficient technique to analyze the EEG Signals and to compute the state of illness of the Epileptic patients.
It is concluded that the use of reflective paving materials is a very efficient mitigation technique to improve thermal conditions in urban areas.
The control procedure is based on the pre-knowledge of the incoming vibration frequency, and when this frequency is unknown, a very efficient prediction technique is used.
The application on existing Reinforced Concrete (RC) slabs of cast-on site Ultra-High Performance Fiber Reinforced cement-based Composite (UHPFRC) layers is a very efficient reinforcement technique, currently spreading.
