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4H
4 h
常用释义
词性释义
4 h
例句
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Through re-
design
to
working
axis
system and
axial
movement
mechanism
the
general
4H
rolling
mill
can
be
reformed
into
WRS
rolling
mill
.
对工作轴系的结构及轴向移动机构重新设计，可将普通四辊轧机改造为WRS轧机。
Spending
2
hours
filling
a
background
behind a
head
drawing
with
a
4H
pencil
is
not
the
best
use
of
time
.
我曾经说过很多次，花2个小时用4H铅笔去机械地涂满一张头像后面的背景，并不是对时间最佳利用的明智之举。
Business
card
printing
and
membership
card
making
the
hardness
of
not
less than
4H
pencil
hardness
.
制卡和会员卡制作铝板的硬度要求不小于4H铅笔硬度。
The
best
inoculum
was
type
3
with
a
hydraulic
residence
time
of
4h
(
Fig
.
4B
)
.
最佳的培养液是3型，水力停留时间为4小时（图4B）。
After
4h
incubation
of MCF-7
with
TMCN
,
significant
changes
in
the
cell
morphology
were
discernible
from
phase contrast
microscopy
.
在将MCF-7与TMCN培养4小时后，可通过相差显微镜发现细胞形态学上发生了显著的变化。
How
can
you
learn the
movement
described
in
4H
?
In
a
word
. . .
你怎样在能做到4H中描述的移动？一句话…
Time
-
interval
from
End
Time
of
Electric
Plating
Process
to
the
Start
Time
of
Hydrogen
Removal Process should
meet
the
Standard
(
less
the
4h
)
从电镀结束到开始驱氢的时间间隔符合标准（小于4小时）
Drilling
Fluid
Technology
of
Tai
4H
1
Well
台4平1井钻井液技术