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日期:2024-08-18
PHP: Hypertext Preprocessor[3], plus connu sous son sigle PHP (acronyme récursif), est un langage de programmation libre[4] principalement utilisé pour produire des pages Web dynamiques via un serveur HTTP[3], mais pouvant également fonctionner comme n'im...
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日期:2024-08-14
根據三角恆等式,可以得知功率(P)的振蕩頻率是電壓(V)頻率的兩倍。 \sin^2 x = \frac
{1 ... 根據P=IV(功率=電流×電壓,實際上有效功率 P = IU \cos\phi ),提高電網的 ......
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日期:2024-08-15
In the general case, however, the simple equation P = IV must be replaced by a
more complex calculation, the integral of the cross-product of the electrical and ......
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日期:2024-08-13
[edit]. PIV can also be used to measure the velocity field of the free surface ......
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日期:2024-08-14
FIPS 201 together with NIST SP 800-78 (Cryptographic Algorithms and Key Sizes
for PIV) are required for U.S. Federal Agencies, but do not apply to US ......
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日期:2024-08-13
For rectifier applications, peak inverse voltage (PIV) or peak reverse voltage (
PRV) is the maximum value of reverse voltage which occurs at the peak of the
input ......
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日期:2024-08-18
The Panzerkampfwagen IV (Pz.Kpfw. IV), commonly known as the Panzer IV, was
a German medium tank developed in the late 1930s and used extensively ......
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日期:2024-08-15
Die Abkürzung PIV bedeutet: Particle Image Velocimetry, ein optisches
Messverfahren; Pentium 4, einen Mikroprozessor, siehe Intel Pentium 4 · Plena
Ilustrita ......