超逾许可装卸时间持续计算延滞费
always on demurrage once on demurrage
水土保持可持续发展
Sustainable development for soil and water conservation
D部分可计算的函数
partially computable function
安全可持续发展
Continuous development of safety
保护与可持续发展
Conservation and Sustainable Development
不可持续性指标标准值
standard value of unsustainability