单词:polylactic acid
单词:polylactic acid 相关文章
Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J
Saline water is used to remove water from inside the sliced cabbages. 切好的白菜要先用盐水渍出多余的水分。 The surface of the stone used every year has been glossy. 由于年年压泡菜石头已经变得无比光滑。 Making kimch
On the heated bed, 6 hands work together to pile the smashed beans into shape. 温暖的火炕上六只手合力把豆泥堆砌成型。 The taste of paste can even be the standard to measure whether a housewife is qualified. 酱的味道甚至可以成
How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t
Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i
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
Pedalo The Heart Strings It seems as good a day as any To start my trek across the ocean With no funds for ship or sail I'll use my legs and my devotion. An aqua bike will be my vessel And high adventure the land I seek So farewell friends who've com
Can Folic Acid Prevent Childhood Autism? From VOA Learning English, this is the Health Report in Special English. A new study found that women who took folic acid supplements in early pregnancy were less likely to have a child with autism. Folic acid
AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa
Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin
By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot
文本: There are 150 tonnes of fish in this one haul. It used to take a fishing vessel one whole year to catch this many fish. These are mostly yellow fin tuna, plus some skip jack. As they're slower breeders than skip jack, many yellow fin are ca
AGRICULTURE REPORT - Making Cheese the Traditional Way By Mario Ritter Broadcast: Tuesday, September 27, 2005 I'm Doug Johnson with the VOA Special English Agriculture Report. The ancient way to store
Diet fuels Olympic athletes An Olympic athlete goes through a strict training regimen as they prepare for the games. Everything they do is analyzed, from practice sessions to the food they eat. And everything they consume is closely monitored to ensu
Question: 问: Does drinking a lot of water after a massage really help flush away toxins, or otherwise augment massages benefits? 在按摩推拿后大量饮水真有助于排毒么?如果不能,那么喝水是否有助于增加按摩的效益?
Does it seem like mosquitoes search you out specifically, maniacally biting you just to make you miserable? 你是不是发现自己特别招蚊子,经常被蚊子咬得很惨? Blame your genes. 怪你的基因吧。 And your smelly feet. 还有你
On September 18th, all New Zealand bread was going to have folic acid added to it. However, now the government has decided to wait three years. New Zealand and Australia have an agreement about food standards. Australia is going to add folic acid to
1.tomato juice 番茄汁 Tomato juice contains the antioxidant lycopene.Scientific studies have suggested that lycopene consumption may protect against prostate cancer, breast cancer, atherosclerosis, and coronary artery disease.Epidemiological resea