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
Al Matnah
antenna preamplifier
ass monkey
audio-cd
basic Q factor
basket trap
be away from
berin
biochips
Borgomaro
bottlers
brachydanio rerio
breastfeeding
breeding plumage (or summer plumage)
C-283
cennen
chain-pump
channa dahl
chemised
Committee of Supply
composting
conical die
container fork lift
Corydalis pseudobalfouriana
credit for productive purpose
dipping out
distinguir
drugstores
dual semantie data model
dufflebag
efficient typesetting
entero-anthelone
enumerative bayesian algorithm
erythrus fortunei
expectant interest
express pump
expressjet
extend type
fabbrica
false channel
feel the need of
fenoharman
fire dange scale
flags of convenience
flow measuring instrument
galvanized iron hasp
gas-operated pump
genome allopoly-ploids (stebbins 1947)
george booles
hood jettison
impedance dialling
incremental program costs
indeterminate boundary
International Conferenc on Marine Pollution
investry
jockey valve
joint filling
Kamchatskiy, Mys
kess
kinetenoid
lawyer-free
lethy
levulic aldehyde
loyalize
mailgnant form
Mollā Ebrāhīm
monorail motor crab
musculus sphincter vesicaes
neutron flux modifying device
P-Aminosalicylate
paint something red
peripheral artery embolism
phytochemistries
pledgors
portrait monitor
pressure-cooker
pretendence
protective insulation
pulverized sugar
quarter phase circuit
receptive substance
relative deafness
requarantine
resist attack
rhodoras
run at full throttle
Saussurea phaeantha
sedecuple
simonis
SOUTHAF
stray light analysis
sucipto
sugar-alcohol
suyao
tartinis
tefroit (tephroite)
tveitite-(Y)
valid transfer of ownership
viejos
vortex interference effect
waste lubrication
wired magazine