adj.引力的，重力引起的

Gravity is the force that attracts two masses together, such as Earth and an apple.
重力是使两个质量（如地球和苹果）相互吸引的力量。
Galileo's experiments demonstrated the universal nature of gravitational acceleration.
伽利略的实验展示了重力加速度的普适性。
Newton's law of universal gravitation states that every object in the universe attracts every other object with a force proportional to their masses.
牛顿万有引力定律指出宇宙中每个物体都以其质量成比例地吸引其他物体。
The gravitational pull between Earth and the Moon causes tides on our planet.
地球和月球之间的引力引起我们星球上的潮汐。
Satellites orbit around planets due to the gravitational force acting between them.
卫星由于行星之间的引力作用而绕行。
Einstein's theory of general relativity explains gravity not as a force but as a curvature of spacetime.
爱因斯坦的广义相对论解释了重力并非力，而是时空的弯曲。
Gravitational waves were first detected by LIGO, providing indirect evidence for black hole mergers.
引力波首次由LIGO探测到，为黑洞合并提供了间接证据。
Artificial satellites require precise calculations of gravitational forces to maintain their orbits.
人造卫星需要精确计算重力作用以维持其轨道。
The escape velocity from Earth's surface is determined by its gravitational pull.
从地球表面逃离的速度是由其引力决定的。
In space, astronauts experience weightlessness because they are effectively outside the Earth's gravitational influence.
在太空中，宇航员感觉失重，因为他们在很大程度上处于地球重力范围之外。