单词:anaerobic biological treatment
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Broadcast: Jan 10 2003 The Pentagon has issued a statement 2) asserting the military is prepared to protect its personnel from possible biological weapons attack. On the surface, the Pentagon's assert
As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new onethe discovery of the first multicellular animals that survive and reproduce entirely without ox
Ecological balance - astable balance in the numbers of each species in an ecosystem. In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different or
Apatites- a family of calcium phosphate salts which are found in hard tissues like bone, teeth and shells. Apoptosis - death of a cell which is programmed by a set of specific genes. Apoptosis of chon
Ameloblasts- cells which differentiate from ectoderm and secrete enamel during tooth development. Amino acids - building blocks of proteins containing a carboxyl group (COOH) and an amino group(NH2) b
Abductors - muscle taking a limb or the jaw away from the body. Acetyl choline - Aneurotransmitter substance found at all cholinergic synapses including those of motoneurones at the neuromuscular junc
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new o
AS IT IS 2015-09-18 Palestinians Turn Organic Waste into Gas for Cooking 巴勒斯坦人将有机废物转化成天然气做饭 Rural communities in developing countries often have trouble securing dependable supplies ofenergy for cooking and lightin
By Lisa Schlein Geneva 20 November 2006 U.N. Secretary-General Kofi Annan is urging nations to do more to combat biological weapons, and to create global safeguards to keep them out of terrorist hands. Kofi Annan at a review conference on Biological
AGRICULTURE REPORT - Biological Controls, Part 1 By Mario Ritter Broadcast: Tuesday, April 13, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Biological controls are living
Britain's first bus powered by human waste has taken to the streets. 近日,英国首辆靠人类粪便供能的新型环保巴士正式上路。 The 40-seater 'Bio-Bus' is fuelled by biomethane gas, generated by the treatment of sewage and food wa
a high spatial resolution 高空间分辨率 a xenon-lamp 氙灯 abode n. 住所,住处 absence n. 缺乏 acceptor n. 接受者 access v. 接近 aerobic adj. 依靠氧气的,与需氧菌有关的
Israel Practices Biological Attack Response The Israeli government has carried out a two-day exercise it says is aimed at boosting preparedness for any terrorist attack aimed at sparking an outbreak of a highly contagious disease. Israeli officials e
Even we can tolerate it only up to a point. 连我们对氧的耐受力也是有限度的。 The oxygen level in our cells is only about a tenth the level found in the atmosphere. 我们细胞里的氧气浓度,只有大气里的大约十分之一。
Anniversaries were few and far between in the Archaean world. 在太古代的世界里,结婚周年纪念日是完全没有的。 For two billion years bacterial organisms were the only forms of life. 在20亿年时间里,细菌是惟一的生命形
Science and technology 科学技术 Athletic performance 运动员的表现 Faster, higher, no longer 更快,更高已成往事 Is it time to update the Olympic credo? 是时候更改奥运会信条了? ON AUGUST 5th millions of people will watch
United States: Pet waste A crap-shoot 美国:宠物粪便,从粪便里发出的新芽 The city ponders a plan to make power from puppy poop. 在宠物粪便中提取能源,该市构建着一幅如此蓝图。 Dogs, unlike people, are capable of
比较难以记住的GRE词汇 holistic 全面的,从整体着眼的 virtually almost virtual in fact mucus 粘液 by virtue of 由于 shrank 缩小,shrink 的过分 pool 集中备用的工人、钱或物资 syntax 句法,句子构造 grid grat
Number ten. The Great Wall of China is the only man-made object visible from space. 第十。中国长城是唯一能在太空中看到的人造物体。 To see something on Earth from space, it would have to be pretty big, 要从太空看到地球上的