-
Theterm
‘X’
is generally understood to mean / has come to be used to refer to / hasbeen applied to …
-
Inthe literature
,
X
usually refers / often refers /tends to be used to refer
to
…
-
Inthe field of X
, several / various / many
definitions of Ycan be found
.
-
Theterm X
is / was / has been
used by Molotov [2011]to refer to
…
-
Changuses the term X [2011] to
referto / denominate …
-
X isdefined by Peng [1990]
torefer to / to mean …
-
Chen[2015] has
provided / put forward / proposed
a newdefinition of X, in which
…
-
X is
defined / identified / described
as
…
[Chang 2004]
.
-
Inthe literature
there seems to be no general definition of X /a general definition of X is lacking /there is no clear definition of X.
-
Severalauthors have attempted to define X, but
asyet / currently / at the time of writing
there is still no accepteddefinition.
-
In
broad / general
terms
,
X
is / can be defined as
a wayto
…
-
The
broad / general / generally accepted
use of the term X refers to
…
-
X issometimes
equated with / embodies
a series of …
-
X, Yand Z are three
kinds / types / categories / classes
oflanguages
.
-
Thereare three kinds of languages: / The three kinds of languages are: / Languagescan be divided into three kinds:
X, Y and Z
.
-
Theacronym PC
stands for / denotes …
-
Thesubjects (
henceforth named / hereafter
‘X’) are …
-
Thesubject, which we shall
call/ refer to
as
‘X’,
is
…
-
Throughoutthis
paper / section
we use the terms
‘mafia’
and
‘themob’
interchangeably
, following /in accordance with
the practice of this department wherethis study was conducted
.
-
Thereare three different types
,namely / specifically:
X, Y and Z.
-
Throughoutthe / In this
paper we
use / will use
the term X to refer to
…
-
Inthis chapter X
is used / will be used to
refer to
…
-
Inthis paper the standard meaning of X
is /will be
used
…
-
Thisaspect
is / will be dealt
with in more detail inSect.
2.
-
Wewill
see / learn / appreciate
how relevant thisis in the next subsection
.