... economical efficiency经济效率，经济效果；经济有效 economical and practical经济实用；经济实惠 economical operation经济运行 ...
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Economical and Practical Type 经济实用型
economical and practical house 经济适用住宅
economical and practical housing 经济适用住房
Economical And Practical Knitting 经济实用织造
practical and economical considerations 可操作性和经济因素
The multi-ribbed slab structure is a kind of seismic energy-saving,ecoenvironmental protection,economical and practical,rapid construction of a new system of building structures,have a good application prospects.
密肋壁板结构体系是一种节能抗震、生态环保、经济实用、建造快速的建筑结构新体系,有着良好的推广应用前景。
参考来源 - 密肋壁板结构工程项目全寿命费用分析方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Economical and practical wooden toys Bring your children great pleasure.
木制玩具，经济实用，给您的孩子带来欢乐。
This model of typewriter is efficient and durable, economical and practical for middle school students.
这个型号的打字机对中学生来说，高效、耐用、经济、实惠。
With the functions of rainproof, paraffin scraping and dual-seal, the device has strong economical and practical value.
该装置具有防雨、刮蜡、双重密封等多种功能，具有很强的经济价值和实用价值。
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