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
lbf查看　lbf　在百度字典中的解释百度英翻中〔查看〕
lbf查看　lbf　在Google字典中的解释Google英翻中〔查看〕
lbf查看　lbf　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:


  • mechanical engineering - Pound-force (lbf) vs Pound-mass (lbm . . .
    The following relationship is key to understand the link between lbm and lbf: 1 lbf=32 174 lbm ft s^2 Arm yourself with this knowledge so that you can fight the good fight: the next time you hear someone say that pound-mass and pound-force are the same thing, you can confidently say they are not!
  • What Do Lbf, Lb, and Lbm Really Mean in American Units?
    The discussion revolves around the meanings and relationships between the units lbf (pound-force), lbm (pound-mass), and lb (pound) within the American system of measurement Participants explore questions regarding the definitions, conversions, and applications of these units in various contexts, including physics and engineering Some participants question whether lbf is a force and lbm is a
  • What is difference between in-lb and inch-lbf? - Physics Forums
    The discussion revolves around the confusion between the torque units inch-lb and inch-lbf, exploring their definitions and usage in practical contexts One participant, Ram18, equates inch-lb and inch-lbf and expresses a need for a torque of 2500000 inch-lbf
  • Converting lbm lbf: Help with Newtons 2nd Law - Physics Forums
    The discussion revolves around the conversion between mass pounds (lbm) and force pounds (lbf) in the context of applying Newton's second law to calculate mass flow rate
  • Why is 1 lbm considered equal 1 lbf? - Physics Forums
    My understanding is that 1lbm = l lbf 32 174 ft s^2 = 3 1081*10^-2 (lb*s^2) ft (slug) My textbook suddenly claims that 1 lbf is equal to 1 lbm This doesn't fundamentally make sense to me because one unit is mass and the other is force (which has an acceleration constant) Thanks for helping
  • Is Our Weight Measured in lbm or lbf? - Physics Forums
    The discussion centers around the measurement of weight, specifically whether it is expressed in pound-mass (lbm) or pound-force (lbf) Participants explore the implications of weight measurement in different gravitational contexts, such as on Earth versus the Moon, and the terminology used in everyday language versus scientific definitions
  • Unit conversion:lbm lbf*h to (N s) N - Physics Forums
    The discussion revolves around converting thrust-specific fuel consumption from imperial units (lb lbf*h) to SI units ( (N s) N) The original poster attempts to perform the conversion but encounters difficulties with unit cancellation and dimensional consistency Participants explore various unit conversion methods, questioning the placement of units in the numerator and denominator Some
  • Deriving the gravitational constant factor for lbf - Physics Forums
    The discussion revolves around deriving the gravitational constant factor for converting force units from the English Engineering System, specifically focusing on the conversion between lbf and lbm under varying acceleration conditions The scope includes conceptual understanding and technical reasoning related to unit conversions in physics
  • Reconcile poundforce w slug and lbmass • Physics Forums
    Chestermiller said: 1 lbf is the force needed to give a mass of 1 lbm an acceleration of 32 2 ft sec^2 What if you're near the equator where the free fall acceleration is less than 32 1 ft s 2? If you set an object with a mass of one pound on a spring scale, don't you want it to exert one pound of force on the scale?
  • How do you convert BTU lbF into J kgK? - Physics Forums
    The conversion of BTU lbF to J kgK requires an understanding of both the energy and temperature scales involved Specifically, 1 BTU equals 1055 J, 1 lb equals 1 2 2046 kg, and the conversion factor for temperature differences is 5 9 when comparing Fahrenheit to Kelvin The correct formula for converting BTU lbF to J kgK is 1055 (1 2 2046) * (5 9), which yields the specific heat of water as





中文字典-英文字典  2005-2009