| 单词 | pca |
| 释义 | > as lemmasPCA PCA n. Medicine patient-controlled analgesia. ΘΚΠ the world > health and disease > healing > medical treatment > anaesthetization, pain-killing, etc. > [noun] > analgesia analgesia1706 spinal analgesia1912 neuroleptanalgesia1961 PCA1982 1982 Ann. Surg. 195 700 This report concerns evaluation of patient-controlled analgesia (PCA) in the form of two preliminary investigations. 1995 S. B. Nuland Romance, Poetry, & Surg. Sleep i. 19 Experience has shown that PCA provides more effective pain relief and sustained comfort to the patient than the previously used traditional methods. PCA PCA n. Statistics principal component (or components) analysis (see principal component n. at principal adj., n., and adv. Compounds). ΚΠ 1968 Biometrics 24 209 PCA of interstitial pH, Eh, free oxygen, carbonate and organic matter indicates three ecologic combinations. 1998 S. C. Morris Crucible of Creation viii. 210 Using statistical techniques such as Principal Components Analysis (PCA), these multidimensional data can be ‘collapsed’ back into two or three dimensions and so plotted as graphs. < as lemmas |
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