英文字典中文字典Word104.com



中文字典辭典   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   


安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • Derivative of the Volume of a Cone - Physics Forums
    Hi, I'm working on a related rates problem, and I need to find the derivative of the volume of a cone So the equation is: V = (1 3) (pi) (r^2) (h)
  • Understanding dv dt: A Beginners Guide to Calculus Concepts
    Calculus deals a lot with relationships of change In the case of dv dt v is one variable and t is another Typically t is the independent variable and v is the dependent variable You may be familiar with ratios of change in quantities For example if I wanted to find my average velocity (change in distance over change in time) I would take the distance I traveled and divide it by the time
  • Why doesnt blood dry inside our bodies? • Physics Forums
    However, blood can clot inside the body under certain conditions, leading to serious health issues such as deep vein thrombosis (DVT), atrial fibrillation (AFib), pulmonary embolism (PE), and ischemic strokes Preventative measures for internal blood clots include regular exercise, avoiding prolonged immobility, and maintaining a healthy diet
  • How is the Aging of Electronic Equipment determined?
    The aging of electronic equipment is influenced by various factors, including the reliability of individual components like transistors, diodes, capacitors, and resistors Key mechanisms such as Time-dependent dielectric breakdown (TDDB) and Hot-carrier injection (HCI) contribute to the degradation of transistors, while capacitors are particularly vulnerable to TDDB The overall lifespan of a
  • What is the astronomy reason for no UHF channel 37?
    UHF Channel 37, operating between 608 and 614 MHz, is reserved for radio astronomy to prevent interference with sensitive observations This frequency is crucial as it allows astronomers to detect weak extraterrestrial radio signals without the noise from commercial broadcasts The allocation of this channel was a compromise, as radio astronomy typically ranks low in priority for spectrum use


















中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典