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sunshine duration
通常以小时为单位。
常用释义
词性释义
日照时数：指太阳直射地面的时间长度，通常以小时为单位。
例句
全部
The
major
reason
of
pan
evaporation
decrease
was
the
decrease
of
sunshine
duration
,
and the second
was
the
decrease
of
wind speed
.
蒸发皿蒸发量出现减少趋势的原因主要是日照时数的减少，其次是风速减小。
Heat island
effect
was
positively
correlated
to
sunshine
duration
and
negatively correlated to
cloud cover
and
relative humidity
.
热岛效应与日照时数呈正相关，与云量、相对湿度呈反相关；
The
annual
mean
sunshine
duration
had
a
decreasing
trend
too
and
the
1990s
witnessed the
most
obvious
change
.
年平均日照时数也呈总体下降趋势，90年代下降最为显著。
Lhasa
strong
solar
radiation
,
sunshine
duration
long
,
low
temperature
,
light energy
is
very
rich
in
resources
.
拉萨太阳辐射强，日照时间长，气温低，光能资源十分丰富。
However
,
the
interannual
variations
of
evaporation
are
consistent
very
well
only
with
those of the
sunshine
duration
.
而蒸发量的年际变化仅与日照时数的年际变化有显著的正相关。
Trends
in
solar
radiation
over
Germany
and
an
assessment
of
the
role
of
aerosols
and
sunshine
duration
德国上方太阳辐射的趋势以及对气溶胶和日照时数作用的评估
Variation
Characteristics
of
Sunshine
Duration
and
Wind Velocity
in
Naqu
,
Xizang for
Recent
40
Years
近40年那曲地区日照时数和风速变化特征
Mean
sunshine
duration
during
flowering
to
autumn stage
开花到成熟期平均日照时数
On
the
relation
between
cloud cover amount
and
sunshine
duration
云量与日照时数之间的关系