英语词汇“protracting pin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

General attributive, denoting instruments used in drawing and plotting (cf. sense 2), as †protracting-bevel, †protracting-needle, †protracting pin, etc.

ΚΠ

1669 S. Sturmy Mariners Mag. iv. xi. 178 To know the Rhomb between any two Places..by a Protracting Quadrant.

1701 T. Tuttell Descr. Math. Instruments in J. Moxon Math. made Easie (ed. 3) 16 Protracting Pin, a taper piece of brass with a Point of Silver, to draw black Lines on Mathematical Paper, and a small Head..which holds a fine Needle to prick off any Degree and part from the Protractor.

1766 Compl. Farmer at Surveying Having drawn lines with the point of the compasses, or a protracting-needle, the intersections represent the angles.

1860 W. E. Newton Brit. Patent 1793 (1861) 1 An improved mathematical or plotting instrument which I intend to denominate a protracting trigonometer.

1875 E. H. Knight Pract. Dict. Mech. Protracting-bevel, a plotting-instrument having a protracting sector and a prolongation of one radius, which forms a rule.

1877 Manufacturer & Builder Aug. 175/3 The patent right to..protracting bevel, $100.

单词	protracting pin
释义	> as lemmas protracting pin General attributive, denoting instruments used in drawing and plotting (cf. sense 2), as †protracting-bevel, †protracting-needle, †protracting pin, etc. ΚΠ 1669 S. Sturmy Mariners Mag. iv. xi. 178 To know the Rhomb between any two Places..by a Protracting Quadrant. 1701 T. Tuttell Descr. Math. Instruments in J. Moxon Math. made Easie (ed. 3) 16 Protracting Pin, a taper piece of brass with a Point of Silver, to draw black Lines on Mathematical Paper, and a small Head..which holds a fine Needle to prick off any Degree and part from the Protractor. 1766 Compl. Farmer at Surveying Having drawn lines with the point of the compasses, or a protracting-needle, the intersections represent the angles. 1860 W. E. Newton Brit. Patent 1793 (1861) 1 An improved mathematical or plotting instrument which I intend to denominate a protracting trigonometer. 1875 E. H. Knight Pract. Dict. Mech. Protracting-bevel, a plotting-instrument having a protracting sector and a prolongation of one radius, which forms a rule. 1877 Manufacturer & Builder Aug. 175/3 The patent right to..protracting bevel, $100. extracted from protractingn. < as lemmas
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> as lemmas