| 释义 |
ˌsuperimˈposed, ppl. a.
[f. prec. + -ed1.]
1. a. Placed or laid upon something else; often loosely with pl. n., laid one upon another.
1805–17R. Jameson Char. Min. (ed. 3) 123 They [sc. alterations of figures] are named superimposed, when they occur in the same part of the fundamental figure, and when the first alteration is modified by a second. 1832Gell Pompeiana I. vi. 109 To bear the superimposed weight. 1834–5J. Phillips Geol. in Encycl. Metrop. (1845) VI. 703/1 Basaltic pillars, if permitted to assume their natural shapes, without pressing one against another, would resemble a number of superimposed spheroids. 1849Ruskin Sev. Lamps v. §13. 148 The curious variations in the adjustments of the superimposed shafts. 1879H. George Progr. & Pov. v. i. (1881) 252 Imagine a pyramid composed of superimposed layers.
b. Phys. Geog. Applied to ‘a natural system of drainage that has been established on underlying rocks independently of their structure’ (Funk's Stand. Dict. 1895).
1875J. W. Powell Explor. Colorado Valley 166 The beds in which the streams had their origin..have been swept away. I propose to call such superimposed valleys. 1898I. C. Russell River Developm. vii. 244 (heading) Superimposed streams. Ibid. 245 A drainage system inherited in this manner by one geological terrane from another is said to be superimposed. 1977A. Hallam Planet Earth 76/2 Alternatively, in superimposed drainage, the river courses may have initially developed on a cover of rocks whose structure was different to that of the rocks beneath, the upper beds having since disappeared through erosion.
2. fig. Superadded; caused to co-exist.
1850Denison Clock & Watch-m. 104 A secondary or superimposed motion to the hands. 1891Hardy Tess xlvi, His heated face, which had also a superimposed flush of excitement.
3. Placed over another in rank.
1861Pearson Early & Mid. Ages Eng. 90 The strong Norman yoke and the superimposed Norman nobility crushed Angle and Dane and Saxon into Englishmen. |