用微带阵列实现智能天线能够满足系统小型化、造价低的要求，这在现代通信中有着广泛地应用前景。
Microstrip antenna arrays can meet smart antenna's demands of miniaturization and low cost and will be used widely in modern communication systems.
系统结构简单、使用方便、造价低廉、便于维护，适合于实验教学应用。
It is simple in structure, convenient to operate, low cost, easy to maintain and suitable for experiment and teaching.
使用位置差分法将减少目标位置监测系统的造价，使目标用户设备简单、造价低，而且重量轻（因为在军事上对于目标携带设备的重量要求往往很苛刻）
This method will reduce the cost of target monitoring DGPS system, and simplify the target borne equipment to reduce the weight of the equipment.
直线电机轮轨交通系统因其造价低、线路适用性强、养护维修简单、噪声低等优点，被业内普遍认为是一种先进的交通方式。
The LIM wheel-rail system has the advantages of low costs, great applicability, low noise and simple maintenance, and is widely believed to be an advanced traffic mode in urban rail transit field.
该系统具有收费效率高、总体造价低、收费管理计算机化的特点，有较高的实用价值。
This system has the advantages of being highly efficient and practical, lowered development cost, and computerized monitoring.
通过实践证明该系统具有设计简单、调试及运行管理方便、系统运行稳定和工程造价低的优点。
Practice proved that it is simply designed, convenient in debugging and operation management and runs steadily besides low fabricating cost.
该系统由集中火灾报警器及区域火灾报警器组成，具有结构简单，工作可靠，功能完善，造价低廉，实用等特点。
The system consists of concentrating fire alarm device and regional fire alarm device. It is characterized as simply structure, working reliable, function powerful, price cheap and practical.
该系统由集中火灾报警器及区域火灾报警器组成，具有结构简单，工作可靠，功能完善，造价低廉，实用等特点。
The system consists of concentrating fire alarm device and regional fire alarm device. It is characterized as simply structure, working reliable, function powerful, price cheap and practical.
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