The phrase "are generally comparable" is correct and usable in written English.
You can use it when discussing similarities or differences between two or more items, indicating that they can be compared in a general sense.
Example: "The two models of smartphones are generally comparable in terms of features and performance."
Alternatives: "are typically similar" or "can be compared generally".
The effects of white, red and blue light are generally comparable when comparing seedling morphology, with a few exceptions.
Those fees vary slightly -- for instance, Travelocity and Orbitz are waiving setup fees for their service -- but are generally comparable.
Nintendo, whose GameCube sales are generally comparable to Xbox's, has announced that it will offer at least one online game this fall that will require a $34.95 adapter to play.
When an inflorescence forms, early changes are generally comparable to that for the single flower with one major difference axillary primordia emerge that either become floral meristems or develop as secondary inflorescence branches.
For other displacement events, the Eds are generally comparable with those for bulk states.
Consequently, the predicted horizontal peak ground motions at the reference sites, are generally comparable to these observed.
The total P concentrations in the acid soils of southern Ethiopian are generally comparable to those found elsewhere.
Like most other cases, the predicted horizontal ground motion spectra at a reference site are generally comparable to those observed.
The restricted stock unit awards to be granted to those employees by JDSU are generally comparable to equity awards that JDSU grants to its similarly situated new employees.
The structures are generally comparable to published descriptions of fold and fault assemblages from shallow-crustal transpressional settings, notably along the San Andreas Fault.
Results indicate that reliability indices achieved with design procedures are generally comparable among the considered codes, and larger than that referring to steel reinforcement.
