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Focal Distance
焦距：光学中指从透镜或反射镜的光学中心到其所成的像或反射点的距离。
常用释义
词性释义
焦距：光学中指从透镜或反射镜的光学中心到其所成的像或反射点的距离。
例句
全部
In
measuring
the
focal
distance
of
lens
,
the
experimental
accuracy
is
often
affected
by
the
poor
quality
in
the
formation
of images
.
在测量透镜焦距时，往往由于成像质量差而影响实验的精度。
The
eye
that has
no
focal
distance
voicelessly
opens
,
and
northern
wild strong
eyes
four
eyes
are
inverse
.
毫无焦距的眼，静静的张开，和北野烈的眼眸四目相对。
experience
,
the
authors
introduce
basic
operations
,
choice
of
film
,
regulation
of
focal
distance
and
exposure
, and
choice
of
color
filter
.
笔者以自己多年显微摄影工作之经验，就该技术的基本操作、胶片选择、焦距和曝光调节、滤色片选择等诸多技术要点作了介绍。
The authors have reported two
methods
for
measuring
the efficient
focal
distance
of
the
laser
rod
lenses
.
提出几种计算和测量激光棒负透镜等效焦距的方法。
Design
of
Annular
Lens
Dark
Field
Vertical
Illumination
System
and Its
Focal
Distance
Offset
Characteristics
环形透镜暗场落射照明系统设计及其焦移特性的研究
Design
method
of the
ring
-
focus
antenna
with a
variable
focal
distance
for forming an
elliptic
beam
椭圆波束变焦距环焦天线的设计方法
"
Focal
distance
"
indicates the
distance
from
radiographic
source
center
to
the
film
;
“焦距”为射线源中心到胶片的距离；
the
optimal
focal
distance
of
the
main body
is
obtained
and
the
digital
image
is
shot
;
获得该主体的最佳焦距，并拍摄一数字图像；
Using
Spectrometer
to
Measure
with
Precision
the
Focal
Distance
of
Concave Mirror
用分光仪精确测定凹透镜焦距
the
shooting
focal
distance
of the
sectional
images
is
analyzed
;
分析该些区域图像的拍摄焦距；
同义词
[光][摄]焦距
focus
focal length