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单词 pretreat
释义 preˈtreat, v.
[pre- A. 1.]
trans. To treat beforehand. Hence preˈtreated ppl. a.
1934Jrnl. Physical Chem. XXXVIII. 795 Comparing the form of the characteristic curve of the normally developed strip S with those of the strips that were pre⁓treated with the iron citrate solutions..the latter are steeper.1950Nucleonics Mar. 48/1 It may be necessary to pretreat and purify the water before using it in the pile.1956Nature 21 Jan. 136/1 A variation of the relative concentrations..may account for the variation..of the shape of light curves observed in differently pretreated algae.1963Mechanical World CXLIII. 17/1 Of recent years the production of pre-treated metal surfaces has increased enormously.1975Jrnl. Immunol. Methods VIII. 383 Peritoneal macrophages..cultivated for 48 hr on glass pretreated with poly-l-lysine.
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