drag roll 中文意思是什麼
drag roll
解釋
壓輥-
The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera
本文對某卷弧尾翼彈氣動特性進行了系統研究，主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算，得到升力系數、阻力系數、俯仰力矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。 -
Still, from ancient times up to now, numerous souls have advanced wave upon wave, tripping to west, west, west ; chariots rumble and roll ; horses whinny and neigh and camel s bells drag on. west travellers have been treking along for millennia, with their heroic songs forming a continuous stream of history
然而，亙古以來，有多少人前仆后繼，向西向西向西車轔轔，馬嘯嘯，駝鈴悠悠。
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