英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
parachutes查看　parachutes　在百度字典中的解释百度英翻中〔查看〕
parachutes查看　parachutes　在Google字典中的解释Google英翻中〔查看〕
parachutes查看　parachutes　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Parachute - Wikipedia
    Paratroopers deploying their parachutes during an exercise A parachute is a device designed to slow an object's descent through an atmosphere by creating drag or aerodynamic lift It is primarily used to safely support people exiting aircraft at height, but also serves various purposes like slowing cargo, aiding in space capsule recovery, and
  • How parachutes work | The science of air resistance
    Parachutes are designed to reduce your terminal velocity by about 90 percent so you hit the ground at a relatively low speed of maybe 5–6 meters per second (roughly 20 km h or 12 mph)—ideally, so you can land on your feet and walk away unharmed
  • Parachute | Aeronautical Safety Device | Britannica
    parachute, device that slows the vertical descent of a body falling through the atmosphere or the velocity of a body moving horizontally The parachute increases the body’s surface area, and this increased air resistance slows the body in motion
  • What Are Parachutes Used For Today? - Sciencing
    What Are Parachutes Used For Today? The parachute is a simple piece of technology with one simple purpose, to slow down fast moving objects or people The wide, flat expanse of fabric catches the air and pulls back on the object or subject to which it's attached
  • The Science Behind Parachutes How They Work | Skydive . . .
    Parachutes are more than a bundle of pretty fabric and haphazard stitches Indeed, parachutes today are a fine-tuned, meticulous design They rely on air resistance to perform uniformly How does a parachute work? Parachutes utilize the principal of terminal velocity
  • How parachute is made - material, manufacture, making . . .
    There are two basic types of parachutes One is a dome canopy made of fabric in a shape that ranges from a hemisphere to a cone; the canopy traps air inside its envelope, creating a region of high pressure that retards movement in the direction opposite the entering air flow
  • How Do Parachutes Work? Understanding Parachute Mechanics . . .
    Learn how parachutes work, from parts to deployment Discover static line parachutes and how parachutes open to ensure a safe descent
  • Parachutes Selection Guide: Types, Features, Applications . . .
    Parachutes are devices utilized to decelerate or stabilize objects, people, or vehicles in their travel through an atmosphere They are most commonly constructed of high-strength fabric These lightweight and low-volume instruments develop a large surface area and significant drag upon deployment
  • Different Kinds of Parachute Types Explained | Skydive Monroe
    To the untrained eye, parachutes are a little mysterious — which naturally breeds curiosity People often don’t realize that there are actually multiple different parachute types that range from ram-air parachutes to rogallo wings
  • Parachute - Encyclopedia. com
    Parachutes allow people to descend safely from aircraft or are used to drop cargo and supplies The most common use is for the sport of skydiving





中文字典-英文字典  2005-2009