The phrase "achieved by external" is not complete and lacks context, but it is grammatically correct.
It can be used in contexts discussing outcomes or results that are influenced or determined by outside factors or entities.
Example: "The success of the project was largely achieved by external funding and support from various organizations."
Alternatives: "obtained through external" or "realized by external".
We have demonstrated that manipulation of cofactors can be achieved by external and genetic means and these manipulations have the potential to be used as an additional tool to achieve desired metabolic goals.
The model block size was 2000 (W) × 2000 (H) × 650 (T) (mm × mm × mm) and the ground stress field was achieved by external compensation method, the maximum output horizontal and vertical direction of cylinders were 3000 kN, and the maximum load intensity was 2.23 MPa.
Their conditional immortalization was achieved by external stimulation with analogs of physiological ligands.
Cell fate reprogramming, such as the generation of insulin-producing β cells from other pancreas cells, can be achieved by external modulation of key transcription factors.
Activation of TRPM8 currents was achieved by external application of 20 μM Icilin.
Quantification was achieved by external calibration versus matrix-matched standards (BCR-144R and CRM029-050) and standard addition with aqueous standards.
Currently such isolation can only be achieved by using external components, adding bulk and cost to designs.
This is achieved by employing external capacitors for memory storage unlike a conventional SI memory.
Trivially, this might be achieved by the external addition of more starting materials, but a more advanced system could regenerate precursors internally in a form of metabolism.
This control was achieved by an external device or was spontaneously established in the presence of the reactants.
Flap design ensures sufficient blood perfusion mainly via the occipital artery, the superficial cervical artery and the transverse cervical artery; venous drainage is achieved by the external jugular vein and by randomised vascularisation.
