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1.414213562373095048801688724209

1.732050807568877293527446341505

➎;

(approach, line of action, policy, position, principle);
beam (e.g. X-ray);
(line, track);
contour, form, outline;
division;
level;
(railroad track, route, lane);
stripe;
wire (e.g. telephone line);

content type e.g. all, document, Font, image, Media, other, Script, style sheet, XHR, ... ;

X	H	T	M	L	,
extensible	hyper	text	markup	language	(		xhtml	)
						xhtml	;
x	html				;
						1	.	0	;
						xmlns	;

x-ray absorptiometry; DEXA, Dual Energy X-ray Absorptiometry; Also see: bGTSU;

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