| 单词 | subsidence reservoir |
| 释义 | > as lemmassubsidence reservoir a. In sense 1b, designating containers or pools in which liquids are allowed to stand so that sediment can settle to the bottom, as subsidence reservoir, subsidence vat, etc. ΘΚΠ the world > movement > motion in a certain direction > downward motion > [adjective] > sinking down > in liquid > sinking of solid matter in liquid > of or relating to subsidence1845 1845 2nd Rep. Commissioners State Large Towns & Populous Districts iii. 325 in Parl. Papers XVIII. 1 Analyses made... No. 1. Water taken up immediately on its leaving the sewer. No. 2. Taken as it flowed from the subsidence pond. 1858 P. L. Simmonds Dict. Trade Products Subsidence-vat, a dyer's settling-vat. 1892 Pall Mall Gaz. 9 Sept. 2/1 All the companies supplying river water..have subsidence reservoirs, into which the water is first turned for the purpose of allowing such of the suspended solid matter as will to settle. 1941 Sewage Wks. Jrnl. 13 67 Extreme variation in the suspended solids load in an influent to a plain subsidence tank are reflected only mildly in the effluent. 1990 C. Hamlin Sci. Impurity iii. 81 Usually the companies purified their river water by storing it in subsidence reservoirs, but it often emerged still turbid or discoloured. < as lemmas |
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