| 释义 |
sludging, vbl. n.|ˈslʌdʒɪŋ|
[f. sludge n. or v. + -ing1.]
1. The action of filling up crevices in dried clay by means of free-flowing mud; also, the mud so used.
1852J. Wiggins Embanking 19 As these spits contract in drying, the crevices outside are therefore filled with mud, which is called ‘sludging’. a1877Knight Dict. Mech. III. 2217/1 Sludging, stopping the crevices incident to the contraction of clay piled in embankments, by mud sufficiently fluid to run freely. 1940Chambers's Techn. Dict. 342/1 The crevices left when the clay has dried out are filled with sludging.
2. The formation or deposition of sludge, esp. in oil.
1922Glazebrook Dict. Appl. Physics II. 928/1 Various schemes and devices are used to prevent sludging, such as..by using a float on the oil surface. 1931Hoffert & Claxton Motor Benzole vi. 143 The difference in the solubilities of the resinous substances in different types of wash oils, also accounts for the sludging that usually occurs when such oils are mixed. 1969Practical Motorist Jan. 557/1 Most modern engine oils incorporate additives which are designed to reduce sludging. 1973Times 1 June 11/5 No black sludge will be able to form in your central heating system. How horrid. I never knew sludging was going on behind those pipes.
3. = solifluction.
1946Amer. Jrnl. Sci. CCXLIV. 626 The down-slope movement of the fine-grained components is presumed to be largely a flow as mud and is called by English writers ‘sludging’. 1959G. H. Dury Face of Earth xv. 177 Widespread sludging is mainly responsible for the featureless aspect of many Arctic landscapes. 1964New Scientist 8 Oct. 105/3 He also showed..that the much-discussed movement by freeze-thaw sludging (solifluction) is quantitatively of very little significance [in a Lappland valley]. 1975J. G. Evans Environment Early Man Brit. Isles i. 7 The Upper Gravel..was most likely formed by downhill sludging under conditions of impeded drainage.
4. Med. The aggregation of blood cells into jelly-like masses in such a way as to impede circulation.
1950Amer. Jrnl. Med. Sci. CCXIX. 538/2 We have..found a close correlation between the blood sedimentation rate and the degree of sludging in the capillaries. 1976Path. Ann. XI. 3 This hemorrhage is sustained for up to 24 hours until the deeper intact capillaries adopt a ballooned appearance due to stasis and sludging of red cells. |