单词：titrants
[网络] 滴定法被测溶液；滴定液；滴定标准液
单词：titrants 相关文章
This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.
Scientific American(八)月
[全屏观看] 点击右键- 另存为 可保存这个Flash影片
北美小学生英语一年级教材（牛津英语教材）
最近这段时间里，国内外的电影纷纷登陆国内各大院线。上映抢爆话题的除了卷福的《奇异博士》之外，还有一部国产片成功吸引了各界人士的注意力，那就是《驴得水》。就在电影业内人士
英语音标发音视频
International Migrants Day takes place on the 18th of December every year. It is on this date because this is when, in 1990, the United Nations adopted an international convention called the Protection of the Rights of all Migrant Workers and Members
英语课程学习计划和讲义
World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r
英语课程学习计划和讲义
Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol
Scientific American(八)月
213. The superficial superintendent 肤浅的校长 sullen-supplement The superficial qualities of the superintendent of the school led many to question his suitability for the job. Most couldnt wait for a new supervisor to supersede him. He acted so
胡敏托福词汇记单词
The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of
VOA标准英语2010年(一月)
GWEN IFILL: Russian President Vladimir Putin delivered his annual state of the nation speech today. Defiant in the face of international sanctions, he boasted of his country's incursions into Ukraine and the annexation of Crimea, reiterating that it
PBS访谈社会系列
Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But
英语小达人
72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0
科技之光
Expatriates in China will join the country's sixth national census starting November 1st and answer eight questions on their basic information, which will not include income and religious affiliation. Besides, the some 6 million trained census takers
英语杂谈
A recent study by Statistics New Zealand showed that most people who migrated to New Zealand hoped to eventually become New Zealand citizens. Over 90% of South African and Pacific Island migrants were the keenest to apply, with 86.5% of South Asian m
新西兰英语
Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We
实用英语
BEIJING, June 29 (Xinhuanet) -- A judge has ruled that Charlie Sheen's monthly 55,000 U.S. dollar child support payments will be garnished from wages he receives from his former boss Warner Bros. Television, media reports said Wednesday. Los Angeles
英语新闻
1. You don't have to see each other every day. 你们不必每天都见面。 If you can, then why not? But you don't have to nag each other about you or your partner coming over just because you haven't seen a glimpse of each other for the day (yet)
实用英语
Twitter has been fighting hate speech for years. Now, it faces what may be the world's most powerful troll: the president of the United States. 多年来，推特一直都在跟仇恨言论作斗争。现在，它又面临着可能是世界上权力最
英语新闻
She was sitting in Washington Square Park. She was young and pretty. The huge arch was to her right. The fountain was to her left. It was a warm, sunny Saturday. Two empty beach chairs and a sign were next to her. The sign said, Willing To Listen. Ea
英文短篇故事（纽约）
通过专注于生活中积极的一面,我在最低谷的时候迎来了人生的高峰。 尼尔帕斯理查 The Optimistic Part of Life Neil: Its just a really rough world right now. Weve got the ice caps melting, unemployments rising, gas prices
英语美文
美国习惯用语第859:怒气冲冲地大喊大叫(音频) rant and rave 昨天晚上我去参加一个社区居民大会，会上有位太太发言，她反对在社区增设交通标志，颇有一种控诉的感觉。我虽然主张大家各抒已
美国习惯用语