  In this paper, we present a relative proof for Goldbach's strong conjecture.
To this end, we first present a heuristic model for representing even numbers
called Semi-continuous Model for Even Numbers or briefly S.C.E Model, and then
by using this model we categorize all even numbers into 75 distinct typical
structures. Also in this direction, we employ this model along with the
following inequality to obtain the relative proof $$\frac{x}{\ln x}\leq_{x\geq
17}\pi(x)\leq_{x>1}1.2251\frac{x}{\ln x}\ ,$$ where $\pi(x)$ denotes the number
of all primes smaller than and equal to $x$. This inequality is presented by
Pierre Dusart in his paper [P. Dusart, \textit{Explicit estimates of some
functions over primes}, Ramanujan J. \textbf{45} (2016), No. 1, 227--251]. In
fact, by relative proof we mean that 72 typical structures out of 75 ones
satisfy Goldbach's strong conjecture.
