海水溶氧测定仪

It's a sunny day. Oxygen in the water increases and the fish crowd together. 今天阳光明媚。冰下的含氧量提高,鱼群的密度会很大。 A 2,000-meter fish net quickly sinks to the bottom. 长达两千米的渔网很快沉入水底。

发表于:2018-12-04 / 阅读(132) / 评论(0) 分类 舌尖上的中国第一季

[00:03.20]Unit 7 The Sea Lesson 3 The Sea World [00:07.92]UNDERwater WORLD [00:10.16]The Best Plance To See Sea Creatures [00:13.62]Polar World [00:15.75]We have polar bears and a real iceberg too! [00:19.45]You can only see a small part of it [00:21

发表于:2018-12-04 / 阅读(419) / 评论(0) 分类 北师大版高中英语模块3

Water Cycle 水循环 All the oceans on earth are salty, while inland water is typically fresh. How does water become salty? We'll answer a listener's question -- today on Earth and Sky. DB: This is Earth and Sky. We recently visited the Austin Childr

发表于:2018-12-07 / 阅读(208) / 评论(0) 分类 (科普英语)Earth and Sky

[ti:UNIT 4 Look into Science! Lesson 30: Keep the Candle Burning!] [0:00.733]UNIT 4 第四单元 [0:02.636]Look into Science! 走进科学! [0:05.638]Lesson 30: 第30课 [0:06.956]Keep the Candle Burning! 让蜡烛燃烧! [0:09.491]THINK ABOUT IT

发表于:2018-12-13 / 阅读(226) / 评论(0) 分类 河北教育初中英语(初中起点)八年级下册

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(168) / 评论(0) 分类 Scientific American(一)月

At the Edge of the Sea The shore is an ancient world, for as long as there has been an earth and se a there has been this place of the meeting of land and water. Yet it is a world that keeps alive the sense of continuing creation and of the relentle

发表于:2018-12-31 / 阅读(235) / 评论(0) 分类 英语名著名段背诵精华

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-02 / 阅读(157) / 评论(0) 分类 英语访谈对话

EXPLORATIONS - 'Houston, We've Had a Problem Here': The Survival of Apollo 13By Marilyn Rice Christiano and directed by Paul Thompson Broadcast: Wednesday, August 30, 2006 ANNOUNCER: EXPLORATIONS -- a

发表于:2019-01-02 / 阅读(122) / 评论(0) 分类 2006年慢速英语(八)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(197) / 评论(0) 分类 Scientific American(八)月

swimming pool 游泳池 changing room 更衣室 shower 淋浴 diving platform 跳台 ten-meter platform 10米跳台 five-meter platform 5米跳台 three-meter springboard 3米跳板 one-meter springboa

发表于:2019-01-05 / 阅读(184) / 评论(0) 分类 英文语法词汇

One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water

发表于:2019-01-08 / 阅读(200) / 评论(0) 分类 Scientific American(四)月

American swimming great Michael Phelps remains on track to win an unprecedented eight gold medals at a single Olympics. VOA's Jim Stevenson was at China's National Aquatic Center as Phelps relied on three other teammates Monday to win a thrilling re

发表于:2019-01-08 / 阅读(139) / 评论(0) 分类 VOA标准英语2008年(八月)

UNIT 4 [00:03.08]Lessons 25~32 [00:08.05]Look into Science! [00:11.89]Lesson 25: [00:16.64]Keep the Candle Burning!Science is so interesting! [00:23.72]I'm sure you'll like this experiment! [00:28.68]When you do this experiment,you will learn somethi

发表于:2019-01-09 / 阅读(368) / 评论(0) 分类 河北加拿大版初中英语

Mars 火星 Mars is a planet. 火星是行星。 It is next to the Earth. 它紧邻地球。 Its size is about one fourth of the Earth. 它约有四分之一个地球大。 Mars is not far from the Earth, but the environment is very different. 火星离

发表于:2019-01-10 / 阅读(140) / 评论(0) 分类 与美国小学生一起学英文第5册

Plankton More Important than Scientists Thought 浮游生物比科学家认为的重要的多 For years, most people thought of small organisms called plankton as food for whales and other large sea animals. But a four-year long study discovered that

发表于:2019-01-12 / 阅读(141) / 评论(0) 分类 2015年VOA慢速英语(六)月

AS IT IS 2016-08-02 US Skydiver Completes 7,600-Meter Jump Without Parachute 美国男子不带降落伞从7600米高空跳下 An American skydiver has survived a 7,600-meter jump from an airplane, although he did not use a parachute. Luke Aikins dro

发表于:2019-01-12 / 阅读(186) / 评论(0) 分类 2016年VOA慢速英语(八)月

Todd: OK, Michael, you are into spear fishing! Michael: Yes, I enjoy going spear fishing Todd: OK. Can you talk about that a bit. Michael: Yeah, sure. Spear fishing basically is a sport that you dive under the wate with the aid of flippers, wet suit

发表于:2019-01-20 / 阅读(152) / 评论(0) 分类 原版英语对话1000个

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(175) / 评论(0) 分类 自然百科2009年

Reading water meters in an unfamiliar part of town, I came upon a house with no number. Then I noticed an elderly man gardening at the first house on that block. Excuse me, I said to him. Are you Number One?He smiled and replied, My wife thinks so!No

发表于:2019-02-03 / 阅读(179) / 评论(0) 分类 趣味英语

swimming pool 游泳池 changing room 更衣室 shower 淋浴 diving platform 跳台 ten-meter platform 10米跳台 five-meter platform 5米跳台 three-meter springboard 3米跳板 one-meter springboard 1米跳板 diving pool 跳水池 non-swimmer's pool 浅水池 swimmer's po

发表于:2019-02-04 / 阅读(144) / 评论(0) 分类 英文语法词汇
学英语单词
'oss
Acer schneiderianum
ainalite
algolagnias
aniline dyestuff
arnebin
asbestos-removal
ass-kick
bruiseless
caducibranchiate
carrying overs
chicken with chestnuts in casserole
chirped
chloropenic azotemia
ciber
citternist
clause marker
clear and convincing evidence
coefficient of transfer
colors
control positioning accuracy
corer circuit
corresponding value
corsetmakers
cruickshanks
crux gammata
culture-baseds
cuspiness
Cyananthus petiolatus
Cydnidae
data compaction
date boil
described video
di-s
digital piracy
distance from midship to center of floatation
driven disc
electric screw clay gun
extendible hashing
flannel mouth
flasky
furskin of sea-lion
gelliodesxanthin
HVCMC
ihthuulin
inchacao
ine
interministerial
iodocrol
Irish
Irlbach
kidney basin
lime-lover
lithium sulfocyanate
logic simulator
madrigali
mawed
mesylate
monkey lymphoma
neoliberals
no-humping car storage
nonsomatizing
Novovyazniki
Nupasal
ohne obligatio
on a rough average
orientational polarization
phenyldimethylpyrazolon
pilot balloon
positive venous pulse
power initiation
preapproves
primary irritant
pseudosurfaces
ralluss
real wage income
resolution test chart
rostrum camera
rubber bearing plant
rusyns
secondary vector
shreddings
shrog
single-stage pilot valve
sleights-of-hand
solar neutrino flux
spear head
step function
strip water
Sussex garden wall bond
switching tube
time division multiplex telegraph system
tube drainage
two port network
UMPK
underskinker
undivert
univariates
Vellberg
want of confidence in the Cabinet
white telephone
xanthisms