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- earth rs magnetic field 地球磁场
- It shows the presence of a magnetic field. 这表明有磁场存在。
- earth rs magnetic pole 地球磁极
- The magnetic field of the earth creates a torque around the pivot. 地球的磁场在支点周围产生一个转矩。
- Most of the earth rs surface is covered by water. 大部分的地球表面被水覆盖着。
- Uranus does have a magnetic field even stronger than Earth's. 天王星确实有磁场,甚至比地球的磁场还大。
- Usually the earth's magnetic field acts as a shield. 平常,地球磁场构成了一个保护屏。
- Earth quakes can result from stresses in the earth rs crust. 地壳内的应力可能引起地震。
- The sun appears to rise and set because of the earth rs rotation. 因为地球在自转,看上去就有了日出和日落。
- Can Magnetic Field Drill through a Piece of Iron? 磁场能穿过铁片吗?
- Lunar eclipse occurs when the earth rs shadow falls on the moon. 地球的影子落在月球上时,就发生月蚀。
- The string is in a magnetic field. 振动弦处于磁场之中。
- The force exerted by a magnetic field. 力由磁场施加的力。
- The lines of force of a magnetic field. 磁力磁场的磁力线
- earth rs magnetism 地磁
- Children supporting their parents is nature rs law and earth rs way. 子女奉养父母是天经地义的。
- Pigeons navigate less accurately when the earth's magnetic field is disturbed. 地球磁场受到干扰时,鸽子的道航能力就会变得不准确。
- The earth's magnetic field protects us from the sun's harmful radiation. 地球磁场让我们免受太阳辐射的伤害。
- A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the magnetic field of Earth. 指南针用于确定地理方向的设备,通常包括一个或多个水平安装或悬挂的磁针,可在枢轴上自由活动直到与地球磁场在一条线上