减压蒸馏深拔受原油热稳定性和减压塔真空度等操作条件的制约，是个复杂的系统工程。
Deep vacuum distillation, being restricted by operating conditions such as the heat stability of crude and the vacuity of vacuum tower etc., is a complicated system engineering.
减压蒸馏深拔受原油热稳定性和减压塔真空度等操作条件的制约，是个复杂的系统工程。
Deep vacuum distillation, being restricted by operating conditions such as the heat stability of crude and the vacuity of vacuum tower etc., is a complicated system engineering.
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