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单词
linear element
释义
linear element
linear element
[
′lin·ē·ər ′el·ə·mənt
]
(mathematics)
On a surface determined by equations
x
= ƒ(
u
,
v
),
y
=
g
(
u
,
v
), and
z
=
h
(
u
,
v
), the element of length
ds
given by
ds
2
=
E du
2
+ 2
F du dv
+
G dv
2
, where
E, F
, and
G
are functions of
u
and
v
.
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更新时间：2026/10/3 21:41:13