单词:glass capillary gas chromatograph
单词:glass capillary gas chromatograph 相关文章
Asian Bacteria Threatens Florida Orange Trees 亚洲细菌威胁到佛罗里达橘子树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of
Computer scientist Shwetak Patel and his team are developing new sensing systems. The initial focus was really around energy and water monitoring.They built a new generation of smart sensors that monitor electronic interference on a homes power line
第31期:At the Gas Station 在加油站 X:May I help you? X:我能为您服务吗? Y:Yes.Fill it up,please. Y:是的,请把车子加满油。 X:Premium or regular? X:高级的还是普通汽油? Y:Regular,please. Y:请加普通汽油。 X:Anyt
A little old lady goes to the doctor ... and says,
Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th
Epidermal growth factor - a cytokine that stimulates epithelial cell proliferation. Epinephrine - a neurotransmitter substance found at all adrenergic synapses (nor epinephrine or epinephrine). It is
Inflammation - is a whole complex of events which occur in sequence, in response to injury. Tissue damaged by bacteria, chemicals, heat, trauma etc, release histamine and bradykinin and serotonin whic
Basal lamina - a term used to describe the different layers which make up the basement membrane. These different layers of the basement membrane, the lamina lucida and lamina densa are only visible wi
head 头 throat 喉咙,咽喉 armpit hair 腋毛 nipple 乳头 chest 胸部 pit 胸口 navel 肚脐 abdomen 腹部 private parts 阴部 thigh 大腿 neck 脖子 shoulder 肩 back 背 waist 腰 hip 臀
At 2 a. m, Mrs. Culkin was convinced that she had heard a prowler in the living, room. Tiptoe down-stairs, she told her husband. Don' t turn on the lights. Sneak up him before he knows what's happeningDutifully Mr. Culkin put on his robe. Just as he
This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr
By Deborah Block Washington 13 May 2008 As the price of gasoline continues to rise in the U.S., more Americans are buying smaller, more fuel-efficient vehicles. Others are holding on to their big cars, in hopes that gas prices will eventually go down
亚洲细菌威胁佛州橘树 Florida's citrus fruit industry is facing a serious threat from a bacteria carried by an Asian insect. The widespread infestation again highlights the danger of transferring non-native species to American soil. 佛罗里达
It's similiar to a pregnancy test: a drop of liquid on a strip of paper causes an easily seen color change. But imagine that kind of simple, cheap technology employed in testing for pollution or health issues anywhere and on the cheap. Researchers at
Do you have gas? Beginners. What kind of a question is that? Are you talking about my body or my car? Well, actually, I am talking about your car. Gas, or petrol, as it is called in England, is a big subject at the moment. Driving a car has become re
By Robert Berger Jerusalem 02 April 2008 Israel is strengthening security on its home front in a sign of war jitters. As Robert Berger reports from VOA's Jerusalem bureau, Israel is casting a wary eye toward Iran. Israel's security Cabinet has decide
We all make resolutions every year to keep fit whether we have diabetes or not. The difference is that as people with diabetes, we need to keep fit, and we know that even if we don't do anything about it. One only has to read the medical abstracts an
护士:早上好! Nurse: Good morning. 病人:你好! Patient: Good morning. 护士:请问哪里不舒服? Nurse: What seems to be the problem? 病人:高烧,感觉糟透了。 Patient: Im running a high fever and feeling terribly bad. 护士:这种情况出现有多久了? Nurse
只要讲英语就会用得上的词汇 闪光之说: 1、shine: 照耀,指光稳定发射; 2、glitter: 闪光,指光不稳定发射; 3、glare: 耀眼,表示光的强度最大; 4、sparkle:闪烁,指发射微细的光度。 打破之说
Sugar bowls and hole 孔隙是岩土固体矿物颗粒间的空间。岩土中直径大于1毫米、重力水可于其中自由运动的孔隙,是大孔隙(macro-pore,large pore)。岩土中直径为0.01~1毫米、重力水和毛管水可存其