音标:[ˈpɔ:tˌhəʊlz] ;
n. 舷窗( porthole的复数形式 )
n. a window in a ship or airplane
n. an opening (in a wall or ship or armored vehicle) for firing through

学英语单词
Ablanitsa
abstract formal right
ampliscaler
angle of equilibrium
anti-agers
at full fling
awake to the fact that
benevolent
Boucher, L.
candy gram
cartilaginous tubes
CHALKER
channel I/O operation
Charles McLean
chloro-acetic fluoride
Clematis florida
commit physical assault
coomo
Cordatanine
cringer
cubitalis Riolani
devil's hand
dividend stock
down the block
dryness system condenser
dun
dunlaoghaires
dynamic measurement of pile
El Tucuche
ethylenedinitrilotetraacetic acid
experimentalised
filter plant
find an echo in someone's heart
gently inclined seam
genus pholass
growth mistake
heat resisting cast iron
household registration system
hydrogen-air-water system
impedance blood volume transducer
indispellable
ingeminating
krackey
long meter
longitudinal seam joint
look aside cache
malbranchea cinnamomea
Malundo
man of the cloth
manager placement
many-reel file
material engineering
mayingite
micro turbulence theory
micropart
miliaria alba
minimum constructive height
Motonaka
mounting method
nonexistent code check
nonleptonic decay
nuchal fibrocartilaginous pseudotumor
page base
parfumier
pennsylpavine
permanent costs
pharmacoradiography
phytocoenogeography
plasma cell hepatitis
pointtopoint
postest
postpubescent
prepars
regulation of inspection and repairs
relief incision
relivers
reno coach
reprovisioned
riveted-drum boiler
robuster
schottky transistor
shrikelet
slide valve reciprocating pump
soft patch
stun box
sukhovel
superpositionally
sutting stream
tabbying
tape recorded
theoretical comparison
tolland
trading receipt
Tsvetovka
tunisite
unpersuadable
von Troeltsch's spaces
wave-front shearing interferometer
wildebeests
workholding fixture
zone point
zymogenous bacteria