硅氧系数,硅酸率

Plant Self-defense Plants may appear to be helpless in the face of hungry,toothy animals but many plants have evolved interesting systems of self-defense. Coarse meadow grasses are a good example. If you run your finger along a blade of coarse grass,

发表于:2018-12-31 / 阅读(81) / 评论(0) 分类 英语听力文摘 English Digest

AS IT IS 2015-07-14 Silica Sand Mining Worries Communities 美国硅砂矿引发社区担忧 The United States is increasing production of oil and natural gas through a process known as fracking. This process is sometimes called hydraulic fracking be

发表于:2019-01-12 / 阅读(112) / 评论(0) 分类 2015年VOA慢速英语(七)月

1、物品article 经济活动中涉及到实体流动的物质材料。 2、物流logistics 物品从供应地向接受地的实体流动过程。根据实际需要,将运输、储存、搬运、包装、流通加工、配送、信息处理等基本

发表于:2019-01-17 / 阅读(99) / 评论(0) 分类 实用英语

AILSA CHANG, HOST: Despite mounting evidence and a stream of dire warnings, federal regulators and mining companies failed to protect coal miners from toxic dust. MARY LOUISE KELLY, HOST: NPR and the PBS series Frontline spent more than a year lookin

发表于:2019-01-19 / 阅读(111) / 评论(0) 分类 2018年NPR美国国家公共电台12月
学英语单词
acoustic nerve (or auditory nerve)
Agua Dulce
Antiparastics
atmospheric sulfur dioxide detector
binder machine
blogshop model
burger bun
burn notice
butt plate splice
cadwalader
cedis
centaureidin
centroid of the rudder area
corner fitting
crush load
dilated
diseased animal slaughter house
Dubki
Dummy text
edmar
eloize
emotivists
entailments
flowing area of mud flow
garnet red
Gauzān
gravimetric baseline
grely
hashing algorithm
heads-ups
hil
Hofoa
hot critical reactor
hydroclone separator
kiss good - bye
Kristianstads Län
land use system
lf communication
Lodrāni
Lyell
magnetothermoelectrical
Manchar
mechanical spring
megacalycosis
metasphaeria theaevora hara
Mitchell River
MNP5
multireflector
negative sequence reactance
nervi spermaticus externus
nomen rectum
nonoverlaid
passive offside
periplaneta sp.
pestoid
phoned up
piquant sauce
pivot leaf gate
planterra
pluri-
polystyrene ceiling board
premastering software
Primula chionogenes
prisonment
private station
production drawing for forging
protective shelter
pure O
radius of particle
recovery component
Relizane
roadworks
rubber tube wire
secondary code
sector magnetic analyzer
sinuses of dura mater
slummers
sort work file
St Ives
steam-age
stoichiometric flame
summoperous
superior longitudinal sulci
take its source at
tax report
tetraisopropyl titanate
tie adzing machine
trichangiectasis
tryangle
tube mill head
tweeled
untrammeling
uprighteous
V. R. L.
Verrières
wayland
william styrons
wind-borne sediments
wound type induction motor
wyngaarden
You rang, sir.
yttria