主: host钻: drill; auger方形主钻杆: kelly (kelly-bar)主钻进封隔器: main drilling packer与主钻孔直径相同的分支钻孔: full-gauge branch hole主组织: principal tissue主最大值: main maximum; principal maximum主组效应: major group effect主最低装备需求手册: master minimum equipment list mmel主组件: mother block主坐标: main coordinate; master coordinate; principal co ordinate; principal coordinates; principal dimension主组分: main constituent; major constituent主坐标法: principal coordinates method主组成子群列: principal composition series of subgroups
