The R-2 rocket (NATO reporting name SS-2 Sibling, Soviet code 8Zh38) was developed based on R-1 design. This was an improved version of the German V-2 rocket manufactured by the Soviet Union.
Pure honeybee spiroplasma was obtained by isolation and purification form the honeybees in R-2 medium.
经从病蜂身上分离，使用R—2培养基纯化培养，获得蜜蜂螺原体（以下简称螺原体）。
The mainland overtook Japan this year to become the world's No. 2 investor in R&D after the U.S.
中国大陆今年超过日本，成为世界上第2大研发领域投资国，仅次于美国。
We are specialized in the R&D and production of 2-color plastic injection auto dog leash.
我们尤其擅长于双色注塑成型自动牵狗器的研发与生产。
And we plug in our values and end up with mv squared mv^2/r-Ze^2/ over r minus Ze squared over And I am going to call this equation two.
我们最后的结果,就是,我把这称为方程式二。
固态化学导论课程节选 : 麻省理工公开课
I know the energy in this first pair would equal -e^2 That is just going to equal minus e squared over 4 pi epsilon zero r naught.
我们明白第一对的能量将会等于,等于,/4πε0，R圈。
固态化学导论课程节选 : 麻省理工公开课
If you want to write it as a vector equation, you want to write it as v square over r minus-- I want to say that it's pointing in the direction toward the center.
如果要写出矢量方程,就应该写成 -v^2 / r,也就是说,方向就向圆心
基础物理课程节选 : 耶鲁公开课
The letter was circulated by House Aviation Subcommittee Chairman Frank LoBiondo (R-2-FL) and Ranking Subcommittee Member Rick Larsen (D-2-WA), along with House General Aviation (GA) Caucus Co-Chairs Sam Graves (R-6-MO) and John Barrow (D-12-GA.).
Atebodd y Dirprwy Weinidog Tai Joyce Watson AC nifer o gwestiynau am newidiadau arfaethedig llywodraeth glymblaid y DU i'r system budd-daliadau tai ar 2 Chwefror 2011.
We test CD-ROM read performance with Testa Labs' CD-Tach 98 2.0 software, and we gauge CD-R performance by writing 430MB of data to CD-R twice: once from an image file and once on the fly.