quadrupolar

dipole-quadrupole interaction

偶极－四极相互作用

microwave triode and tetrode

微波三极管与四极管

SO(2) Duality Theory of Electric Quadrupole and Magnetic Quadrupole Radiation;

电四极和磁四极辐射的SO(2)对偶理论

three-dimensional quadrupole mass analyzer

三维四极质量分析器

beam-tetrode power amplifier

束射四极管功率放大器

triple tandem quadrupole instrument

三级串联四极质谱计

quadrupole residual gas analyzer

四极剩余气体分析器

gas chromatograph-quadpole mass spectrometer

气相色谱四极质谱仪

isovector quadrupole oscillation

同位旋矢量四极振荡

calar quadrupole oscillatio

同位旋标量四极振荡

gas-tetrode relaxation oscillator

充气四极管张弛振荡器

Tube tetrode (directly/indirectly heated cathode).

电子四极管(有直热式/旁热式阴极)。

Study of the 4ports 4polarizations Base Station Antennas for PHS;

PHS四端口四极化基站天线的研究

Tube tetrode with directly or indirectly heated cathode.

具有直接或间接加热的阴极的电子管四极管。

after that, she chopped down the four feet of a giant turtle and stabilized four polarities of the earth with them.

她砍下了大龟的四只脚立稳了大地的四极;

A tetrode with grid and plate potentials so arranged that plate current decreases when plate potential increases.

负耗阻性管由栅极和极板电势组成的四极管，其中当极板电流降低时极板电势反而增加

God will bless us, and all the ends of the earth will fear him.

神要赐福与我们．的四极都要敬畏他。

a thermionic tube having four electrodes.

有四个电极的热离子管。