1·Poor durability, short service life and low economical efficiency of Bridges have become a worldwide difficult problem.
桥梁耐久性差、服务寿命短及全寿命经济性指标差等问题已成为世界性难题。
2·Working performance of condenser directly affects the heat economical efficiency of the system.
凝汽器工作性能的好坏直接影响到系统的热经济性。
3·I think the trend of shipping maximization, alliance and annexation of shipping enterprises, deeply lies in the scale economical efficiency of the container liner transport service.
笔者认为船舶大型化的趋势以及航运企业的联盟与兼并,其根本动力在于集装箱班轮运输业的规模经济性。
4·It fully discusses the feasibility, economical efficiency and applicability of the scour protection scheme of silt foundation in tidal area.
综合论述了河流涌潮区段粉砂地基抛石护底防冲保护方案的可行性、经济性和适用性。
5·The results show that the method has satisfactory accuracy and high economical efficiency.
实例表明,该方法具有满意的精度和较高的经济性。