超前锚杆的安装误差,一般要求孔位偏差不超过_____cm
锚杆钻孔应按设计要求定出位臵,孔位允许偏差为±150mm,砂浆锚杆的深度误差不得大于()mm。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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