| 释义 |
▪ I. trass|trɑːs, -æ-|
Also 8 traas, traass.
[a. Du. tras, Ger. trasz, earlier teˈrras, tiˈras.]
= tarras.
[1793Smeaton Edystone L. §201 Tarras. [Note] This substance, when prepared for use, is by the Dutch called Tras, from which our appellation of Tarras undoubtedly originates. ]1796Kirwan Elem. Min. (ed. 2) l. 354 Often mistaken for volcanic traass. 1811Pinkerton Petralogy II. 427 The trass of the environs of Andernach, on the left bank of the Rhine, is a kind of puzzolana formed of small fragments of pumice, and several species of lavas... Trass is transported by water as far as Dort, to be reduced to powder in stamping mills worked by the wind... The Dutch also supply England with trass. 1838Civil. Eng. & Arch. Jrnl. I. 412/2 Tarras, or trass, is a bluish black cellular trap or lava, quarried at Andernach on the Rhine, into millstones. 1862G. P. Scrope Volcanos (ed. 2) 178 Both puzzolana and trass, when mixed up with lime, set readily under water.
▪ II. trass, trasse
obs. ff. trace, trash n.1, truss. |