| 单词 | impact head |
| 释义 | > as lemmasimpact head impact head n. = impact pressure n. ΘΚΠ the world > matter > physics > mechanics > force > [noun] > pressure > fluid pressure > specific overpressure1819 head of steam1820 pressure head1856 velocity head1884 velocity pressure1904 impact pressure1919 impact head1928 1928 G. Martin Treat. Chem. Engin. xvi. 3 A connection between the density of a fluid W and the power required to move it through a pipe of area A when the impact head is l1 in. of water and the dynamic head is l in. of water. < as lemmas |
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