| 单词 | intermittent movement |
| 释义 | > as lemmasintermittent movement b. In other technical collocations. intermittent movement (see quot. 1959); intermittent sterilization, a microbiological procedure which accomplishes sterilization without using the high temperatures required to kill spores outright, and which involves alternately maintaining the materials to be sterilized at a temperature high enough to kill vegetative cells and at a much lower temperature during which germination of spores occurs (producing new vegetative cells to be killed during the next high-temperature period). ΘΚΠ the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > disinfecting > [noun] > sterilization sterilization1874 intermittent sterilization1893 tyndallization1900 1893 tr. W. Migula's Introd. Pract. Bacteriol. ii. 41 The test-tubes containing the blood serum may be now subjected to ‘fractional or intermittent sterilisation’, by exposing them for an hour a day for eight days to a temperature of 58°C. 1959 W. S. Sharps Dict. Cinematogr. 104/1 Intermittent movement, the term used for the method of film transport in a camera, projector or printer, whereby the film is moved intermittently and only exposed to light when stationary. 1969 S. T. Lyles Biol. Microorganisms v. 130 Intermittent sterilization may be accomplished by boiling or steaming in the autoclave at O pressure. < as lemmas |
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