The phrase "are considerably narrower" is correct and usable in written English.
It can be used when comparing the width of two or more objects, concepts, or ideas, indicating that one is significantly less wide than the other.
Example: "The new design options are considerably narrower than the previous models, allowing for easier navigation in tight spaces."
Alternatives: "are significantly narrower" or "are much narrower".
Modern instruments are considerably narrower in bore than earlier ones.
While the failure rates differ somewhat in the two series, the confidence intervals overlap and are considerably narrower in the larger series.
Note that these Matrigel lines are considerably narrower and more effective than previously described μCP laminin tracks which required a width of at least 30 μm to achieve axonal directionality.
The confidence intervals for p2, p3, μ2, σ4 are considerably narrower than they were for white singletons born to heavily-smoking mothers, as are the confidence bounds for r1 x) in the VLBW range, r2 x) in the MLBW range, and r3 x) in much of the NBW range.
American and Taiwanese officials held detailed discussions last year on a possible trade and investment framework agreement, which would be considerably narrower than a free trade agreement.
The standard court for the American version is considerably narrower than the English court, being 5.6 m (18.5 ft) wide, and some other dimensions are also slightly different.
Keith Gumbinger, a vice president of HSH Associates in Butler, N.J., which publishes information on the mortgage market, said that "the average spread needs to be upwards of 2percentt," for adjustable-rate mortgages to be a clear choice, "but of late they've been considerably narrower".
The teen appeal of Sonic Youth (arty New Yorkers who imbued bizarre tunings and deadpan singing with pop pleasure) and the Meat Puppets (spaced-out Arizonans whose uncanny tunecraft won them a major-label deal well before Nirvana broke) was considerably narrower.
Clinton's victory over democratic socialist Bernie Sanders in Nevada was considerably narrower than Trump's over Cruz and Rubio, after the independent senator from Vermont once again put in a better-than-expected performance, making significant inroads into the former secretary of state's Latino votes.
The band gap energies of the doped TiO2 samples were considerably narrower than that of plain TiO2.
