Example sentences of "[verb] long [been] know [prep] " in BNC.

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1 Collagen has long been known for its hydrating power and as a source of nutrients for the skin , but its penetration into the epidermis has always been limited by its high molecular weight .
2 It has long been known for its very good annual conferences , and for giving the Eleanor Farjeon Award .
3 Singapore has long been known for its campaigns against littering , smoking , spitting and jay-walking , but it may be the only place in the world trying to toilet train an entire nation .
4 So that was what I was doing in Baldersdale — looking for survivors in what has long been known to be a botanically rich area .
5 Mr Chaskalson has long been known as a human-rights lawyer defending people charged under South Africa 's apartheid and terrorism laws .
6 Its colour used to range from yellowish or tawny to dark red , but the red was always preferred and the breed is now characteristically ‘ ruby red ’ — a dark but bright blood colour — and it has long been known as the Ruby of the West .
7 South of the Brabant Massif the existence of workable Upper Carboniferous coals beneath deformed Devonian rocks has long been known from mines and boreholes through the Faille du Midi or Midi Overthrust , the major thrust-fault complex of the Variscan Front .
8 But it has long been known from careful palaeontological studies that even in the thick development in the Cotswolds , there is evidence of two major breaks and a period of folding in what otherwise was a very peaceful period in British geological history .
9 It has long been known in education circles that a clear correlation exists between social class background and examination success .
10 The way he wears you down , the way he bleeds you white — if his name were Julian Barnes , he would have long been known as the Glacier .
11 The effect was explosive , and deeply embarrassing to the government 's position , which for years had been obstructive — to such an extent that Britain had long been known as ‘ The Dirty Man of Europe ’ .
12 Samuel Irving — ‘ Si ’ — Newhouse jr , second-generation New York billionaire , had long been known as a collector of modern American art , but his November 1988 purchase of Jasper John 's False Start propelled him into the public consciousness .
13 In any case , it seems inevitable that the development of the mechanical clock should have been primarily due to the Church for , although the transmission of power by rope and pulley had long been known to craftsmen , the mathematics of gear-trains ( particularly astronomical trains ) was known only to the highly educated , and their education was provided only by the Church .
14 The Padovani family had long been known to John Coffin since they had once run a restaurant near where he had lodged as a young detective .
15 By the 1960s the mass of Venus had long been known from its gravitational effect on the orbit of the Earth and of Mercury .
16 Indeed , lady 's slipper , skullcap , valerian and other herbs have long been known by Western herbalists to have such calming effects .
17 Some of the coarser ones have long been known from simple histological studies , but more recent mapping of the nerve tracts and individual axonal connections has required a variety of specialized techniques .
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