<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _D2O_Sublimation_Pressure(T):
 """Sublimation Pressure correlation for heavy water Parameters T : float Temperature, [K] Returns ------- P : float Pressure at sublimation line, [MPa] Notes ------ Raise :class:`NotImplementedError` if input isn't in limit: * 210 ≤ T ≤ 276.969 Examples -------- 3.27390934e-5 References IAPWS, Revised Release on the IAPWS Formulation 2017 for the Thermodynamic Properties of Heavy Water, http://www.iapws.org/relguide/Heavy.html. """

    if 210 <= T <= 276.969:
        Tita = T/276.969
        suma = 0
        ai = [-0.1314226e2, 0.3212969e2]
        ti = [-1.73, -1.42]
        for a, t in zip(ai, ti):
            suma += a*(1-Tita**t)
        return exp(suma)*0.00066159
    else:
        raise NotImplementedError("Incoming out of bound")