The velocity of sound falls far short of the speed of light.音速远不及光速快。 speed, dash, hasten, hurry, quicken, rush 这组词都有“催促”“赶紧”的意思。它们的区别是:quicken指动作变化短暂、快,活动性较强,使其变为更活泼、有力或敏捷; dash指在一个很短的距离内快速前进,也指赶忙做某事;...
a. Distance traveled divided by the time of travel. b. The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time. c. The magnitude of a velocity. 2. Swiftness of action: He wrote the first chapter with great speed....
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Jump in time and space of a grey high-speed ship in blue light Danil_Rudenko Travel through SciFi Wormhole Tunnel at Warp Speed in Galactic Space - 4K IncrediVFX A high-speed flight through dark purple abstract hyperspace in space Vooper Looped animation. Interstellar travel through space and...
[4] Only a fraction of a rocket's energy is used to lift up out of the atmosphere; the vast majority of it is used to gain orbital (sideways) speed. This leads us to the central problem of getting into orbit: Reaching orbital speed takes much more fuel than reaching orbital height. ...
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ESSExploration System of Systems(NASA) ESSExact Stochastic Simulation(chemistry) ESSESET (Executive Security & Engineering Technologies, Inc.) Smart Security(antivirus software) ESSExpeditionary Support Ship ESSElectronic Support Section(part of Inertial Upper Stage Solid Rocket, Boeing) ...
reaction engine, reaction-propulsion engine - a jet or rocket engine based on a form of aerodynamic propulsion in which the vehicle emits a high-speed stream 2. engine - something used to achieve a purpose; "an engine of change" causal agency, causal agent, cause - any entity that produces...
These are illegal street racing games in which you have to demonstrate your driving skills to avoid ending up in a serious accident.Other games like the famous Grand Theft Auto also base part of their content on the world of driving, being able to drive vehicles of all kinds. All of this...
The specific delivery time depends on the items and thequantity of your order.5. What is your terms of payment? A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.6. Do you ...