propulsion
/prә'pʌlʃәn/
📖 中文释义
- n. 推进, 推进力
- [医] 前冲, 慌张步态
🔗 释义中的汉语词
💬 双语例句
I invite you to experience, for the first time anywhere in the world, here on the TED stage, a real-life holographic teleportation, between me and my friend, Dr. Jeffrey Norris, from NASA's Jet Propulsion Laboratory.
我邀请大家见证TED 舞台上 全世界第一次做嘅即时全息图影像传输 同我一位朋友 嚟自 NASA 喷射推进实验室嘅 Jeffrey Norris 博士倾计
Anyone who has stood near a helicopter taking off will understand that a lot of energy is required to lift a heavy object vertically into the air. Drone rotors are essentially big fans, pushing air down to create upward propulsion.
首先来看看物理规律。 任何曾在直升机起飞前站在附近的人都会明白需要大量能量才能将重物垂直抬升到空中。 无人机水平旋翼实际就是大型风扇,向下挤压空气才能实现飞行器向上抬升。 不产生巨大噪音和空气扰动实现起飞根本不可能。
🔵 同义词
🔗 常用搭配
📘 English Definition(英文释义)
- n. a propelling force
- n. the act of propelling