Example sentences of "this [is] usually [verb] " in BNC.

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1 This is usually done by chemically inducing a thin surface coating of corrosion .
2 This is usually done in order to reassure the patient ( e.g. explaining that it is customary for a person 's interest in sex to be impaired when depressed ) .
3 This is usually done by questioning to assist recall .
4 This is usually done by the subjective judgment of the officer concerned .
5 * This is usually done by chilling the outside of the hot glass by means of air jets .
6 ( this is usually done when the carriage is at the right , when there is one more row to knit before changing colour ) .
7 This is usually done at a clinic or hospital .
8 This is usually done easily enough .
9 This is usually done by a guillotine that cuts back a bundle of a dozen or so plants at a time , and it is not unusual to find the cut ends chopped and bruised rather roughly .
10 This is usually done by the lionesses .
11 This is usually done by sliding , especially for covering short distances , whether in attack or defence .
12 This is usually done by incorporating the provisions of the Law of Property Act 1925 , s196 , or those of the Landlord and Tenant Act 1927 , s23 .
13 This is usually done .
14 The particulars must also be confirmed by or on behalf of the clearing member , and again this is usually done for him by the exchange 's electronic system .
15 This is usually explained by the presence of sand , a soil type not liked by phylloxera , but , curiously , there are also some wall-enclosed vineyards which shelter phylloxera-free , ungrafted vines .
16 This is usually undertaken by applying current global prevalence rates to projected future population structures .
17 When numerical data is used for making generalizations about the world this is usually based on limited information or samples .
18 This is usually expressed in terms of pushing an activity underground ( eg pornography ) or into the backstreets ( eg abortion ) or abroad ( eg experiments on embryos ) .
19 Again this is usually expressed as a percentage .
20 This is usually expressed in terms of their having replacement ratios of over 100 per cent .
21 Within Eastern traditions this is usually expressed in the language of self-transcendence , annihilating the ego .
22 ( i ) Title music Combined with a title design , this is usually repeated at the beginning and the end of each programme and helps give it an identity .
23 This is usually caused by ill-treatment with chemicals , heat or styling aids .
24 This is usually achieved by extending the main house downpipe above the roof ( and covering it with a bird grill ) .
25 The examples also demonstrate the complexity of the family situations which are referred to social workers , if a situation can be resolved by commonsense solutions , and talking through with friends and relatives , then this is usually achieved privately .
26 This is usually achieved easily enough by line breeding , though if the mutated genes are not dominant only a percentage of each brood is likely to be of the new form .
27 This is usually achieved by having an inspection chamber — fitted with a manhole cover — wherever a connection is made to the drain , wherever there is a junction between drains or wherever the drain itself changes direction or gradient .
28 This is usually referred to as the catastrophic version ; and today this has few , if any , adherents .
29 We can confine ourselves to models of the random coil , as this is usually believed to be most appropriate for synthetic polymers ; other models — rods , discs , spheres , spheroids — are also postulated , but need not concern us at this level .
30 The purpose of this is usually to allow students the opportunity to use language they know in a less controlled situation .
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