1)  4~3Σ_g~+ state
4~3∑_g~+态
1.
Sixty-five new vibronic levels of the Na_2 4~3Σ_g~+ state have been observed in the 33900-35200 cm~(-1) energy region above the potential minimum of the ground state by pulsed perturbation facilitated optical-optical double resonance (PFOODR) fluorescence excitation spectroscopy.
用微扰增强双共振对钠分子4~3∑_g~+态33900～35200 cm~(-1)的65个振转能级进行了实验观测。
2)  4℃
4℃
1.
In the study, the effects of different treatments (AgNO3, GA3, KT, TDZ and 4℃ ) on seed dominancy were studied.
本实验以AgNO3、GA3、KT、TDZ和4℃低温处理凤丹种子,探讨解除其上胚轴休眠的途径。
3)  "4+4+4" model
“4+4+4”模型
4)  4 * 4 keyboard
4*4键盘
5)  4×4 block
4×4块
1.
The edge strength of Intra frames and Inter frames are computed respectively,taking units of 4×4 block.
264中去块效应滤波的理论进行了再分析,提出了一种以4×4块为单位,对帧内预测帧和帧间预测帧分别计算边缘强度(Bs)的快速去块效应滤波算法。
6)  4×4 elements
4×4单元
1.
A novel Xband microstrip array antenna is presented in the paper,which is 4×4 elements.
主要阐述了一个新颖的X波段4×4单元微带阵列天线的设计方法。
参考词条
补充资料：单线态-单线态能量转移
分子式：
CAS号：

性质：处于电子激发单线态的能量给体，通过激发能的转移使能量受体处于激发单线态的过程。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。