放牧牧场

apertures for drilling fluid───孔用钻井液

livestock grazing───放牧

pasteurizing───消毒

pasture land───牧场

take for granted───认为…理所当然

tries for a point───试图得到一点

zero grazing───零放牧

age structures of the tillers of the grass on both pastures for grazing and cutting uses are of an expanding type.───割草场和放牧场硬拂子茅无性系种群分蘖株均属于增长型年龄结构。