沪科版 初中数学课本，英文术语汇总
七上(新版)
positive number
negative number
integer
fraction
rational number
origin
positive direction
unit length
number axis
opposite number
absolute value
reciprocal
power
base number
exponent
scientific notation
approximate number
error
even integer
odd integer
algebraic expression
monomial
coefficient
degree
polynomial
term
constant term
integral expression
like term
linear equation with one unknown
system of linear equations with two unknowns
elimination by substitution
elimination by addition and subtraction
solid
face
line
point
line segment
ray/half line
straight line/right line
intersection
point of intersection
middle point
distance
angle
angular bisector
supplementary angle
complementary angle
sampling survey
population
individual
sample
sample size
simple random sampling
bar chart
line chart
pie chart
七下
square root
radicand -> radical sign
arithmetic square root
extraction of square root
cube root
radical exponent
extraction of cubic root
irrational number
real number
inequality
linear inequality with one unknown
solution set
solving inequality
system of linear inequalities with one unknown
formula for the square of the sum
formula for the difference of squares
factorization
common factor
fraction
numerator
denominator
rational expression
reduction of a fraction
fraction in lowest terms
reduction of fractions to a common denominator
fractional equation
extraneous root
opposite angles
perpendicular line
foot of a perpendicular
parallel lines
corresponding angles
alternate interior angles
interior angles on the same side
translation
八上
x-axis
y-axis
rectangular coordinate system
independent variable
function
method of undetermined coefficient
scalene triangle
isosceles triangle
equilateral triangle
acute triangle
right triangle
obtuse triangle
angular bisector
median
altitude
proposition
true proposition
false proposition
counter example
theorem
proof
inference
exterior angle
congruent figures
congruent triangles
symmetric figure
axis of symmetry
perpendicular bisector
八下
quadratic radical
quadratic radical in lowest form
quadratic equation with one unknown
solving by completing square
method of formula
method of factorization
Vieta's theorem
Pythagoras' theorem
polygon
diagonal of polygon
parallelogram
rectangle
rhombus
square
perfect rectangle
perfect square
absolute frequency
table of frequency distribution
relative frequency
frequency histogram
mean
weight
weighted mean
median
mode
variance
九上
quadratic function
parabola
inverse proportion
hyperbola
similar polygons
similarity ratio
proportional segments
golden section
tangent
sine
cosine
trigonometric function
angle of elevation
angle of depression
九下
rotation
circle
center of a circle
radius
arc
chord
diameter
central angle
circumcircle of triangle
circumcenter of triangle
inscribed triangle of circle
angle in a circular segment
secant line
tangent line
point of tangency
inscribed circle of triangle
incenter of triangle
circumscribed triangle of circle
parallel projection
center projection
view
certain event
impossible event
random event
probability
