The most important thing is that it saves materials, lightens its weight, simplifies the base of the bridge, and discharges floodwaters.
最重要的是它有节省材料、减轻自重、简化桥基、宣泄洪水的几个作用和功能。
The resistance at welded parts is thus got rid of, which reduces power consumption, improves product function, saves materials and shortens production time.
消除了焊接处的电阻，有利于减少电能消耗，提高了电器性能，节省了材料，缩短了生产周期。
The large offset mouth is applied instead of elbows. It not only saves materials, but also reduces the drainage resistance. It lays a foundation for doing well the gas drainage.
现改用大偏口代替弯头，不仅节约材料，而且降低了抽放阻力，为做好瓦斯抽放工作打下了坚实的基础。
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