There are still many controversies on aseismatic performance of PC frames as they are applied in industrial buildings with special technological requirements.
而预应力混凝土框架结构应用于有特殊生产工艺要求的工业建筑中，其抗震性能还存在一定争议，亟待研究。
As a technological and market leader, we offer a complete range from bale openers via blenders and cleaners to CARDS and draw frames.
作为技术和市场的先导我们供应品种繁多的开棉机、混棉机和除尘机、还生产各种梳棉机和并条机。
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