"internal differentiation" is a correct and usable phrase in written English.
You can use it to refer to the process of differentiating or distinguishing between the separate parts of a single entity. For example, "The company used internal differentiation to pinpoint which of its divisions were most successful."
In China it will take longer because of its size and internal differentiation".
This manifestation of active crustal movement and resurfacing is accompanied by clear evidence of internal differentiation.
The preservation of this record of intense bombardment on Callisto's surface is consistent with the absence of internal differentiation.
That history must have included some intense internal heating in order to produce the internal differentiation into the metallic core and rock and ice layers that are observed today.
These forms of governance may include traditional institutions; diplomatic practices in relation to other indigenous peoples; internal differentiation and collective organization of, for example, clans, families, bands, or tribes; and ceremonial activities.
This is mainly due to the internal differentiation of migrants in upward mobility.
Each of the schools examined posits at least one entity that is completely uniform in nature and therefore has no internal differentiations.
The required first and second derivatives of the solution of the DAE are computed very efficiently by a special coupling of the techniques of internal numerical differentiation and automatic differentiation.
They have a high degree of internal structural differentiation into photosynthetic and storage zones.
The natural, instinctive, 1950s sense of British nationhood – forged through two world wars, a Protestant faith and an imperial project which suffocated the tensions of internal UK differentiation – would not see out the second Elizabeth's reign.
The implementation is done following the idea of internal numeric differentiation.
