地球引力

Then, the orbit of the Moon about the earth could be a consequence of the gravitiational force, because the acceleration due to gravity could change the velocity of the Moon in just such a way that it followed an orbit around the earth.

如此说来，月球的轨道应该是地球引力的结果。因为引力产生的加速度会改变月球的速度，使它按一个绕地轨道运转。

Earth's gravitational attraction, such as solar gravity of the Milky Way's gravitational more!

地球引力太阳引力银河系引力等更大的引力！

Launch vehicle: Rocket system that boosts a spacecraft into Earth orbit or beyond Earth's gravitational pull.

运载火箭：将航天器推入绕地球轨道或脱离地球引力范围的火箭系统。

Launch vehicle: Rocket system that boost s a spacecraft into Earth orbit or beyond Earth's gravitational pull.

运载火箭：将航天器推入绕地球轨道或脱离地球引力范围的火箭系统。

Did you know that to get to the moon it takes more power for that rocket to lift off and break way from the earth's pull of gravity thatn all the power it needs to travel to the moon and back to earth-half a million miles!

你知道不知道，在火箭奔月时，它起航和脱离地球引力时所用的能量，远远大于它驶向月球途中和返回地球时所用的能量，这可是50万英里啊！

Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

对地球引力的研究表明在不寻常的负荷之下地壳和地幔会发生位移。对地球引力的研究表明， 40。

Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

对地球引力的研究表明，对地球引力的研究表明在不寻常的负荷之下地壳和地幔会发生位移。

Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会对地球引力的研究表明，对地球引力的研究表明发生位移。

Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

对地球引力的研究表明，在不寻常对地球引力的研究表明，的负荷之下地壳和地幔会发生位移。

Studies of the gravity field of the Earth indicate that its crust and mantle yield when unusual weight is placed on them.

对地球引力的研究表对地球引力的研究表明，在不寻常的负荷之下地壳和地幔会发生位移。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。