第1个回答 2010-01-07
The optical fiber and radiates the light is the electromagnetism wave radiation to person's eye, transforms after the visual nerve into the optical fiber, namely can by naked eye seeing that part of spectra. This kind of visible light beam's wave length in 360 arrive at between the 830nm scope, is merely in the electric radiation spectrum a very small part. luminous flux unit: The lumen (lm) the luminophor sends out sum total of the obvious light quantity, namely photo source luminous flux luminous intensity (l) unit: The candela (cd) generally speaking, the optical fiber is to the different direction launch, and the intensity varies. the obvious luminophor the luminous flux which launches in the specific direction unit solid angle is called the luminous intensity. degree of illumination (E) unit: Lux (LX) the luminophor shines, in is illuminated in the object unit area the luminous flux, is called degree of illumination the brightness: (L) unit: The ridge/square meter (cd/m) in the luminophor specific direction unit solid angle the unit area launches the luminous flux is called brightness. luminous intensity distribution diagram of curves commonly used optics formula luminous intensity: Conventional symbol Representative L. In specific angle luminous flux/specific angle degree of illumination: Conventional symbol Representative E. The luminous flux which is accepted by the surface (lm)/is illuminated thing surface area the brightness: Conventional symbol Representative L. The luminous intensity is observed superficial area the light effect: Conventional symbol Representative H. Launch flux/power consumption.
第2个回答 2020-03-21
拉里·贝尔蒙特的工作,这家公司制造的机器人。最近用机器人可以被用来做housework.会被测试被拉里的妻子Claire。
克莱儿不想让机器人在她家,尤其当她的丈夫将会缺席三周,但是拉里说服她,机器人不会伤害她,或者让她受到伤害。然而,当她第一次的机器人,她感到惊慌。这个机器人名叫托尼,看起来不像一台机器。他很英俊挺拔,尽管他的面部表情从未改变。他的头发是黑声音平稳很深。
在第二天早晨托尼使她早餐,然后问她是否需要帮助。她感到尴尬,快告诉他去。它被打扰,可怕的,他看上去是那么的人类
第3个回答 2019-09-11
1
Dear
Mama,
Today
is
your
birthday.
This
is
the
second
birthday
that
I
am
able
to
spend
together
with
you.
If
possible,
I
hope
that
next
years
and
in
the
many
years
ahead,
I
can
be
at
your
side
and
celebrate
your
birthdays.
Although
you
have
not
given
me
life,
however,
in
my
mind,
I
take
you
as
my
natural
mother.
With
you
by
my
side,
I
always
feel
so
secure
and
safe.
I
feel
that
I
am
really
fortunate
to
be
able
to
meet
you.
Although
I
don't
have
a
mother,
I
have
two
mothers
who
love
me
so
much.
I'll
never
forget
you.
You
are
my
most
precious
memory
of
my
days
in
Britain.
2
Peter,
congratulations
to
you
for
the
honour
you
received.
We
will
always
support
you
in
your
work.
Moreover,
we
also
wish
to
express
our
thanks
for
the
care
and
concern
you've
shown
us
all
along.
3
I
am
very
glad
to
be
able
to
know
you
and
to
work
with
you.
I
am
so
happy
and
I
really
don't
want
you
to
leave.
人工翻译