What language can be used in classifications

■ The following prepositional phrases are very useful when talking about the feature used for classification (item 2 above):

xxx can be classified

by

size

according to

weight

according to whether

composition

on the basis of

etc.

with respect to

with regard to

■ The following sentence patterns can be used to explain the way in which something can be classified:

A ...

is

grouped

commercially

into

(superordinate

can be

divided

technically

into

(nouns indicating the

term)

may be

classified

electrically

as

subordinated

made

up of

categories)

broken down

into

A ...

is

classified

electrically

as

..., ..., ...,

according to

(superordinate

can be

grouped

technically

(nouns

on the basis of

(feature used

term)

may be

indicating the

for

subordinated categories)

classification)

For example:_

Classification of cast steels

Commercially, steel castings are classified as follows:

(a) low-carbon steels (carbon content below 0.20)

(b) medium-carbon steels (carbon content between 0.20 and 0.50%)

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