The phrase "both these types" is grammatically correct and can be used in written English.
Example: "Both these types of cars have similar features, but one is more fuel-efficient than the other."
Further, it is also shown that with disk rotation both these types of acoustic modes split into forward and backward traveling waves, offering direct evidence of a rotating core in the fluid flow in the enclosure.
Indeed, the RnrL allele identified compromises both these types of altered growth and mammalian ribonucleotide reductase and topoisomerases are targets of anticancer drugs.
Both these types of event have their aggravations.
Effective countermeasures against both these types of attacks exist.
Both these types of flight are possible because of the principles of physical science.
But both these types of cases shed light upon the analysis necessary to resolve the present case.
By inferring an index of refraction, the monolayer thicknesses obtained from both these types of studies are self-consistent.
Both these types are "old" compositions developed for other applications several decades ago.
As the demand rises for both these types of bonds, their rates fall, and so do the associated rates for household mortgages.
Our nation absorbs both these types of people; both are equally "foreign" to some of us, equally Indian to us all.
This chapter describes both these types of creativity and discusses AI models related to arts and science.
