The phrase "a defined volume" is correct and usable in written English.
It can be used in contexts related to science, mathematics, or any field where specific measurements or quantities are discussed.
Example: "In chemistry, a defined volume of liquid is necessary for accurate measurements during experiments."
Alternatives: "a specified volume" or "a measured volume".
The formed iodine was titrated with a defined volume V of sodium thiosulfate Na2S2O3 standard solution.
Extracted samples are then centrifuged to remove insoluble materials and brought up to a defined volume.
A defined volume of the appropriate test solution was mixed into the bulk soil for the respective treatment.
This enables to estimate the maximum size of a defect likely to occur in a defined volume.
In the simulations a constant heat flow of radiation, that is absorbed in a defined volume, and constant permeability coefficients are assumed.
Primary air has to mix efficiently with the fuel droplets, confining them in a defined volume and ensuring their complete consumption in a determinate residence time.
In this approach, very high doses of radiation are delivered to a precisely defined volume of tissue in a short period of time, effectively killing tumour cells and reducing the size of the tumour mass.
LV volumes and EF were determined in the same way as for the small animal study, i.e., by applying a threshold of 50% of the maximum in a manually defined volume of interest containing the cavity.
Ion implantation is presently considered to be the most reliable method to enclose this source in the detector homogeneously distributed in a well defined volume.
The tumour growth delay calculations were based on the growth increase for a defined period, the tumour volume reached at a defined time point, and the time to grow from the starting volume to a higher defined volume.
With this method, patterned layers can be formed in a well defined volume and shape with the possibility to vary composition between layers.
