排列常角法  permutation ruled angle method

常角测量法  Normal-angle measurement method; Normalangle measurement methods

不定常法  nonstationary method; time-dependent method

不法常材  Abnormal wood

常常  OFT OFTen; every now and then; at short intervals; not seldom; oft; every so often; Frequently; often; Usually; Much

常常祷告的  prayerful

常常无缘无故地傻笑  grin like a Cheshire cat

常法半钢轧辊  common semi-steel roller

常法架欀  open throat

常法血清  conventional method serum

常法支架  open throat

常角多倍投影制图仪  normal angle multiplex

常角轨道  Trajectory

常角摄影机  normal-angle camera; normal angle camera

常角透镜  normal-angle lens

常角物镜  normal-angle lens

常角像片  normal angle photography

寸法常数  scantling number

法院司法常务主任  registrar of the court