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- Connect your tuner and transmitter to a good earth ground. 把调谐器和发射机安置在一个好的地理位置。
- Do not apply more than 250V(AC or DC) between any input and earth ground. 任何被测试对象对地电压，包括直流和交流，不能超过250V。
- Grounding: Each machine should have 1/4-20 earth ground stud on each side (left and right) of the machine. 接地线：每个设备应该在两端(左右)配备1/4-20的接地线。
- Most electrical outlets have a prong that connects to the earth ground, which is also usually wired into the building electrical system for safety. 绝大多数电源插座有一个地线端与大地相连，这通常是为保障建筑电气系统的安全而采取的安全措施。
- A referenced single-ended (RSE) measurement system, also called a grounded measurement system, is similar to a grounded signal source, in that the measurement is made with respect to earth ground. 单端基准点(RSE)的测量系统是相对于地线测量信号的，有时也称为接地测量系统。
- 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。
- Analysis of Line Action Mistake Caused by Single-phase Earth Ground 单相接地引起线路误动作分析
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- During the earth tremor a large piece of rock chopped out of the ground. 在一阵轻微的地震中，一大块岩石突然从地下露出地面。
- 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。
- 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。
