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pelvic fins
腹鳍
常用释义
词性释义
腹鳍
例句
全部
modified
portions
of the
pelvic
fins
in
male
sharks
,
rays
and
chimaeras
used
for
transferring
sperm
to
the
female
.
在雄鱼鲨鱼，魟与银鲛的腹鳍的变异部分用来了把精液转移到母鱼。
Most
species
are
small
bottom
dwellers
with
a
weak
suction
cup
formed
by
the
fusion
of their
pelvic
fins
.
大部分为底栖鱼，特征是具一个由腹鳍愈合而成的吸力不强的吸盘。
aerofoils Modified
pectoral
or
pelvic
fins
used
for
gliding
in
some
fishes
.
鳍翼部分鱼类的变异的胸鳍或腹鳍可用以在空气中滑翔。
ventral
(
or
pelvic
)
fins
correspond
to the
hind limbs
of
a
quadruped
.
与四足动物后肢相对的是腹鳍。
Flying fish
rely
on
a
similar
flow
of
accelerated
air
from their
pectoral
fins to provide
lift
to their
smaller
pelvic
fins
.
同样，飞鱼借助胸鳍所产生的加速气流，就可以对较小的腹鳍产生一定的提升作用。
Anterior
dermal
window
of
light
organ
between
insertions of
pelvic
fins
.
在腹鳍嵌入点之间的发光器的前面皮窗。
large
ferocious
northern
deep-sea
food
fishes
with
strong
teeth
and
no
pelvic
fins
.
北部深海中庞大凶恶的食用鱼，牙齿有力，无腹鳍。
pelvic
bud
Swelling
at
site
of
future
pelvic
(
ventral
) fins
;
anlage of
pelvic
fins
.
腹鳍的芽胞在未来腹鳍位置上的隆起物；腹鳍的原生细胞。
Elongated
mostly
scaleless
marine
fishes
with
large
pectoral
fins
and
reduced
pelvic
fins
.
多数细长的无鳞海水鱼，有大的胸和退化的。
elongate
fishes
with
pelvic
fins
and
girdle
absent
or
reduced
.
长鱼，没有骨盆鳍和带状物，或已经退化。