$k_b$	Stiffness constant of bond stretching potential
$k_a$	Stiffness constant of angular bending potential
$k_t$	Stiffness constant of torsion potential
$l$, $l_0$	Bond length and equilibrium bond length
$\theta$, ${\theta }_0$	Bond angle and equilibrium bond angle
$n_{\varphi }$, ${\varphi }_0$	Torsion angle and equilibrium torsion angle
${\sigma }_{ij}$	Zero-potential distance of Lennard-Jones
${\epsilon }_{ij}$	Well depth of Lennard-Jones
$r_{ij}$	Distance between the atom $i$ and $j$
$h_1$, $h_2$	Maximum and minimum values of the height of bottom after demolding
$w_1$, $w_2$	Maximum and minimum values of the width of bottom after demolding
${h_1}^{\prime }$, ${h_2}^{\prime }$	Maximum and minimum values of the height of shoulder after demolding
$h$, $w$	Values of the height and width of bottom before demolding
$h^{\prime }$	Values of the height of shoulder before demolding