英 美 abbr.换极开关(=Pole Changing Switch）abbr.凿孔卡系统(=Punch Card System)
PCS的相关资料：
临近单词
pct
PCR
Pcs.
pcs me.
PCs Cluster
PCS networks
PCS STORAGE BOWL WITH COVER
Pcs auto emergency tool kit
PCS ppers inserted card set
PCS Variance Analysis Division
PCS DIAMOND MOUNTED POINT SETS