First , we put forward the concept of publishing ecology , which was defined as the science to study the interaction law and mechanism between publishing medium and its environment 本文從分析出版生態(tài)入手,提出了出版生態(tài)學(xué)的概念,認(rèn)為出版生態(tài)學(xué)就是研究出版媒介與其環(huán)境,以及互為環(huán)境的出版媒介之間相互作用規(guī)律和機(jī)理的科學(xué)。
Some differences in value may be due to the omission of the fluid viscosity . the hydrodynamic interactions between two approaching or disparting spheroids , between two parallel torpedo - type or airplane - type platforms , between fore - and - afterward symmetrical uuv or platform and parent submarine have been investigated numerically , from which some interaction laws are drew 另外還進(jìn)行了以下受力計(jì)算:兩個(gè)相互靠近或遠(yuǎn)離的橢球體、魚雷型平臺在壁面或潛艇附近運(yùn)動(dòng)、飛機(jī)型平臺在壁面或潛艇附近運(yùn)動(dòng)、首尾對稱魚雷狀uuv與潛艇相對運(yùn)動(dòng)。