Same meaning?
The tubular heart or the primitive heart tube is the earliest stage of heart development .
The primitive heart or tube-shaped heart tube is the earliest stage of heart development .

Answer: yes

Same meaning?
At least four disks are required in a standard RAID 01 configuration , but larger arrays are also used .
In a standard - RAID - 01 - configuration , at least four disks are used , but larger arrays are also necessary .

Answer: no

Same meaning?
The river Amaradia or the river Negreni is a tributary of the Valea Negrenilor river .
The Amaradia River or Negreni River is a tributary of the Valea Negrenilor River .

Answer: yes

Same meaning?
Support for HTML + , a proposed successor to HTML 2 , was implemented while the specification was being developed .
Support for HTML + , a proposed successor of HTML 2 , was developed while the specification was implemented .

Answer:
no