“二體”造句
2024年06月13日 10:10:35
在
二體假設(shè)下, 推導(dǎo)了橢圓軌道上相對(duì)運(yùn)動(dòng)方程的近似形式.
In the two - body case, the approximate equations of relative motion on elliptic orbits are derived.
研究了真空熔鑄法制備的錳白銅基鑄造碳化鉻復(fù)合材料的
二體磨料磨損機(jī)理.
The abrasion wear mechanism of Mn copper - nickel alloy matrix - cast chromium carbide composite was studied.