螺立林 的英文怎麼說
中文拼音 [luólìlīn]
螺立林
英文
spirilene-
Pliny the elder recorded that this land was 12, 000 km distant from c 醞 iz, and uba, a numidian king intended to establish a stock farm of purple murex there
老普林尼記載這塊土地離烏巴大概12 ， 000公里，一位努米底亞國王打算用紫色的骨螺在那裡建立一個畜牧場。In the second part, firstly, the mathematical model for predicting hydrodynamic characteristics of varivec propeller under steady or unsteady condition are present, based on the general propeller lifting - surface theory, potential flow theory and green theorem. then, theoretical calculation methods for predicting hydrodynamic characteristics of varivec propeller designed above paragraphs are present, based on the finite basic solution method, the unsteady vortex lattice method and hess - smith method
在理論計算部分，本文首先基於常規螺旋槳升力面理論、勢流理論和格林定理建立了定常和非定常狀態下全方向推進器水動力性能計算的數學模型，然後利用有限基本解法、非定常渦格法和赫斯?史密斯方法對全方向推進器定常和非定常狀態下的數學模型進行了數值離散，接下來針對前面所設計的全方位推進器進行了數值預報。
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