asymptotic distributions of yearly minimum surface temperature and parameter estimate in chongqing district
重庆地面最低气温年极值的渐近分布及参数估计
leeward of the yearly minimum frequency wind direction
全年最小频率风向的下风侧
Flood protection measures under the same flood prevention criteria may be optimistically selected by the criteria of minimum yearly cost.
对满足同一防洪标准的各种防洪措施,也可用年费用最小的原则优选。
The factors of pump lift and pump price have been considered comprehensively in design, thus making whole irrigation system work under the economical and energy-saving condition and making the system have minimum yearly cost.
在设计中综合考虑了泵的扬程和泵的价格等因素,使设计出的整个灌溉系统运行于较经济的节能状态,并使系统的年费用最小。
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