Example sentences of "[pron] [prep] [num] [noun pl] per [noun sg] " in BNC.

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1 On 30 March , however , an exceptionally violent explosion occurred , blowing off the top 200 metres of the volcano , and propagating a dense eruption cloud which expanded upwards at a speed estimated to be something like 500 metres per second , finally reaching a height of thirty-eight kilometres .
2 It rose to something like 35,000 tons per year but then began to tail off ( see appendix D ) .
3 A vineyard planted en foule will have something like 25,000 vines per hectare , compared with between 7,000 and 8,000 under post-phylloxera systems such as Cordon .
4 During the winter when the stock were indoors their involvement amounted to one to four hours per day .
5 It is usually appropriate to see patients one to three times per week at first ; sessions after this can be spaced out to provide continuing support as changes are consolidated .
6 One hundred and fifty nine subjects ( 88% ) were visited one to three times per week by the district nursing service .
7 Thanks to Vo Quy — who led the first team of Vietnamese scientists south of the seventeenth parallel to investigate the environmental damage caused during the US/Vietnam war — almost every student in Vietnam plants one to three trees per year as part of the school curriculum .
8 It 's says rule of thumb that eye contact is one to three seconds per person
9 This entitles them to four copies per year of the ‘ Tracks ’ Newsletter , one free entry to the park per year , a Junior Friends ' badge and a park poster .
10 I look upon anything above 10 milligrams per litre , non-ferrous metals , as bad .
11 Our trucks had open sides and Marius , Vermulen and I clung to each other , faces buried in our hoods , as we churned down the slushy autoroutes , the speed of the trucks sending icy , sawing winds through us at seventy kilometres per hour .
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