The phrase "acceptable approximation" is correct and usable in written English.
It can be used when discussing a value or estimate that is considered sufficiently close to the true value for practical purposes.
Example: "In our calculations, we found that the estimated cost is an acceptable approximation of the actual expenses."
Alternatives: "reasonable estimate" or "satisfactory approximation".
We instead use the area of the disc at the bottom of the child hemisphere as an acceptable approximation.
But for officials at all levels, it seems, the appearance of order — measured by reducing the number of petitions — is an acceptable approximation of actual order.
The proposed method is fast, producing the maximum with acceptable approximation.
The range in which the analytical solutions can be considered as an acceptable approximation is given.
The drawback of this basic method is that the number of terms in the PWL approximations required to obtain an acceptable approximation error can be very large.
The method is shown to give an acceptable approximation of both the kinematics and the delamination surface.
It is exhibited that in order to achieve the acceptable approximations for fundamental frequency as well as the analytic solution, six terms in series expansions should be taken into account.
Numerical solutions including heat transfer resistance were also obtained to show the effect of heat transfer resistance on the temperature profile and to establish the conditions under which the simple analytic solutions which assume thermal equilibrium can be considered as acceptable approximations.
When tested under gravity loads, this configuration with 7 grid beams in each panel gave acceptable approximations of both resultant forces and displacements.
Therefore, the grouping of urban and suburban areas is feasible and gives acceptable approximations if we seek to further simplify our model.
Although NGR values calculated using well data (1-D) are generally used as acceptable approximations of the reservoir NGR, the interpretation of the shape and lateral extension of sedimentary features solely based on vertical data is rather difficult.
