Example sentences of "by groups [prep] [noun pl] [prep] " in BNC.

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1 This is perhaps the result of a deliberately indifferent attitude by the composer , who says that the piece can be played by most instruments as a solo , or by groups of instruments as ensembles ; that the general tempo can be between = 42 and 132 , the duration between four and twelve minutes ; and that the ordering of different melodic strands can be quite haphazard .
2 He had taken a captured Italian Lancia lorry along on the trip , as he had heard that there was a roadhouse at Mersa Brega used by groups of officers for meetings .
3 Pages headed Handout are intended primarily for use when the course is being completed by groups of students under the guidance of an instructor or course leader .
4 The second is the introduction of group representation theory in which groups are represented ( via homomorphisms ) by groups of matrices with complex number entities .
5 The practical work of establishing comparability is undertaken by groups of experts from each member state .
6 Clearly irritated , Gorbachev and other senior officials watching the parade faced barracking by groups of protesters for more than 30 minutes before leaving the balcony of the Lenin Mausoleum .
7 The role of individuals is important because industrial behaviour is very strongly influenced by organized trade unions , and trade unions are led ( at all levels … ) by groups of individuals with considerable power , influence and discretion over the industrial relations strategies which they pursue … .
8 At a press conference on May 2 President Vaclav Havel said that he thought that racist attacks by groups of skinheads on Romanies , Vietnamese guest workers and other members of racial minorities were being provoked by supporters or agents of the former communist regime , who were also engaging in disinformation about the situation in the country .
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