1)  optically negative crystal
负光性晶体
2)  PPC
负光电导
1.
The experiment shows persistent photocurrent(PPC),negative photocurrent(NPC),and negative persistent photocurrent(NPPC)trends as the excitation intensity is changed from low to high when the excitation light includes wavelengths larger .
实验发现样品的光电导与入射光强有密切的关系,当入射光强由弱到强变化时,样品会依次出现正常持续光电导(PPC)、负光电导(NPC)和负持续光电导(NPPC)现象。
3)  optically negative
负光性
1.
In optical mineralogy, the relative magnitude of ( N g- N m) and ( N m- N p) are often used to the discrimination of optically positive biaxial crystals from optically negative ones.
它们之间的关系如果是Ng-Nm>Nm-Np时,矿物为正光性;反之,则为负光性。
4)  photonegative
负光电(的)
5)  negative light modulation
负光调制
6)  light-negative
负光电导性
参考词条
补充资料:连续性与非连续性(见间断性与不间断性)


连续性与非连续性(见间断性与不间断性)
continuity and discontinuity

11an父ux泊g四f“山。麻以角g、.连续性与非连续性(c。nt,n琳t:nuity一)_见间断性与不间断性。and diseo红ti-
说明:补充资料仅用于学习参考,请勿用于其它任何用途。