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卫生间内作等电位连接，局部应与等电位端子箱LEB中的端子连接。卫生间在距地0.3m设一等电位端子箱，至金属管道、金属器具接地线采用PVC16管内穿BVR-4?铜线(黄绿双色)可靠联接，每根联接线均
整平（也称置平）是使对准部上的水准管在任何方位时，管内的气泡最高点与管壁上刻划线的中点重合，亦称气泡居中。此时仪器的数轴垂直，水平度盘居于水平位置。整平的操作方法如下：
Danny Jones
领先的公司拥有更好的性能，更丰富的产品类型，更好的技术和无可挑剔的售后服务的优势。因此，他们占据了高端市场的大部分市场份额。展望未来几年，近年来价格缓慢下行趋势将保持不变。随着竞争的加剧，不同品牌之间的价格差距将缩小。同样，毛利率也会出现波动。