na. 缓慢的进展
[网络] 艰难的行走;艰难的旅程;难走
(heavy-going 的复数)

学英语单词
a.m.
absorption maximum
actual pay load
alternate generations
amanita sychnopyramis subannulata
analytical philosophy
aneroid battery
arthrolithiasis
Atlantic-Indian Ridge
attempt frequency
attenboroughi
azimuth planetary gear
barrel churn
Bulbophyllum rufinum
calling party control
celastrine
Churchton
circuit algebra
circular milling
civil aviation medicine
colloquintida
computer-to-plate
cotton-growing
counter-note
cycle work
cyclooctatriene
DCA (distributed communication architecture)
deim zubeir (daym zubayr)
deuteranomalopsia
diathering machine
diffusive phase
dimidiates
dock harbour
dual-voltage
egyptian cloth
electronic raster
fast ball
fasti
feathertop grass
food chain cycle
forced oscillations
free reeds
gadolinium complex
galtah
gas-holder bell-type
Hildburghausen
Holstebro
hyperchromic shift
illudin
in an ordinary way
inhalation general anesthetic
initial - value problem
Joan I
kerb weights
leukodepletion
levelling off
machinery chock
malposed tooth
marchpanes
material fragment
mizza
multistep method
Mwenso
neutral sizing agent CS
no shit!
nonannualized
nozzle dam
occupational health
openext
outdoor critical air temperature for heating
OWRT
pathometr
popular-music
quirini
radiism
Ro-46467
rub elbows
seam saw
seaplane mother ship
sectorial rate of consumption
seepage velocity
sentry post
series link servomotor
single radial diffusion test
sink sample
smoke explosions
solid case
sonatrach
spatial disequilibrium
spectrofilter
starting preheater boiler bracket
submarine receiving set
surform
taonius pavo
tortarilla
transient stability analysis
troposcatter
unpackages
uperization
Walthard cell rest
white lotus
wohlstetter