物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。
You have to believe in yourself when no one else does – that’s what makes you a winner.
Sustainability isn't a choice; it's an obligation we owe to the planet and future dairy farmers.
The future of petrochemical industry lies in sustainable development.
Technology without application scenarios is like water without a source.