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1 Winter is an etching, spring a watercolor, summer an oil painting and autumn a mosaic of them all.

2 He is busy etching.

3 Hanging on the wall was a fine etching of the church.

4 Weak etching gives a thin, patchy stain.

5 Hydrofluoric acid is the etching agent for silicate-rich rocks; carbonates can be etched with various weak acids.

6 Insurance companies sometimes offer free window etching for motor policy holders.

7 Etching - dip a cocktail stick in lemon juice or vinegar and scratch away the colour when the dyed egg is cold.

8 Where the technique of etching fell woefully short, he discovered,(www.Sentencedict.com) the art of lithography excelled.

9 The patterns formed by the processes of etching and/or evaporation of the conductor make the electrical circuitry of the integrated circuit.

10 Usually the surface requires some preparation, often etching, to receive and retain the precipitate.

11 When engraving was developed or etching was developed, engraving sort of, a lot of people lost interest in engraving.

12 A white flame roared up, etching the room in black and white.

13 Etching such a polished surface gives a relief which is more subtly fabric selective than etches controlled by an imperfect surface.

14 Device Processing : Etching. Surface passivation; dielectric films.

15 EPR method is consistent with the acid etching test.

16 A simple chemical etching method was developed for fabricating the super - hydrophobic surface on polycrystalline aluminum alloy.

17 Through the etching process, a silicon mold with smooth sidewall can be got.

18 The present paper introduced the use of acid etching technique to restore the defective anterior teeth in child patients.

19 It attacks most metals and is used for etching steel and photoengraving.

20 It is now only necessary to inspect the etch-resist artwork on the p.c.b. prior to etching it as described previously.

21 Etching is simply carried out by placing the slice or thin section face up in the chosen etching solution.

22 Several chapters cover the basics of clean room technology, e.g., lithography, etching and layer deposition techniques.

23 He strove with words as he strove with brush, pen, or etching needle to give the public equal sensations.

24 As the youngest art of printing in the world, silk screen block printing shares the same unique form of expression with copperplate etching, lithograph and xylograph.

25 Austenite grain size of plain carbon steel and alloy steel were examined by oxidization and grain boundary etching method.

26 A new technology for fabrication of silica on silicon arrayed waveguide grating (AWG) based on deep etching and thermal oxidation is presented.

27 Two methods making fine - line metal pattern fabrication including etching and lift - off were introduced in this paper.

28 Simulate the water film formation conditions at the time of tillage parts touching soil, tested the optimal combination of etching Plowshare Steel surface contact angle.

29 Through comparing the indicators for estimating the process localization, a new concept of localized etching rate(LER) is presented for evaluating stray etching.

30 In order to reveal the detail structure of the polymeric materials, the selective etching treatment of the materials is necessary.