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- The computation of nutation series and the estimation of the earth orientation parameters (EOP) make use of an intermediate pole. 章动序列计算和地球定向参数测定需要一个中间的天球参考极作参照。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- The actual antenna is the earth itself. 天线是地球自己。
- The earth is only a speck in the universe. 地球在宇宙中只不过是一个小点罢了。
- The lunar communications relay unit (LCRU), a high gain antenna mounted on the LRV, had to be oriented at each station for television transmission to Earth. 真不好意思，碟型天线是用来和地球通讯的。指向那么大个地球还不容易？
- How on earth do they manage to rob the bank? 他们到底怎么抢了银行的？
- A number of satellites are now circling the earth. 一些人造卫星现在正环绕地球飞行。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The red sun lights up the sky and the earth. 红太阳照亮了天空和大地。
- Who on earth is that female he's with? 跟他在一起的那个女人究竟是谁?
- Antarctica is the loneliest place on earth. 南极是地球上最偏远的地区。
- He dived his hand into the earth. 他将手插入泥土中。
- Earth worms are often used as bait. 蚯蚓常用作鱼饵。
- The earth in the garden is good, soft soil. 花园里的泥土松软肥沃。
- Many kinds of animals have vanished from the earth. 许多动物已人地球上消失了。
- The heavy wheels churned the earth into mud. 笨重的车轮将大地碾成了泥浆。
- What percentage of the earth is covered by oceans? 地球上百分之多少被海水覆盖着？
- The heated air drinks up the moisture of the earth. 热空气把土里的湿气都吸干了。
- EOP (earth orientation parameter) 地球定向参数
