the blooming flowers the blue love the blue moon the blue planet a nat the blue-tail fly jim the board of electron the boarding school g the bocks the body shop ananya the bone joint system the bone wars the bonus the boogie that be the book of esther the book of iod the book of ...
the filthy animal the final phase the financial environ the finite element me the finite element mo the fire is the test the fire that burns i the firemens ball the firm says the first blow is hal the first couple the first day of luna the first floor bath the first majority sh the ...
ParticipleandGerundwhichareusedalotbecauseoftheirconcise,logicandimmenseinformation.E.gAirpollutedbysmokeisharmful.Radiatingfromtheearth,heatcausesaircurrentstorise.(热量由地球辐射出来时,使得气流上升.)(现分短语作状语,相当于从句Whenitisradiatingfromtheearth)Vibratingobjectsproducesoundwaves,eachvibrationproducingone...
the process of which occurring in regions starting from the earth’s core to its hydrogen shell lies in the upper atmosphere, with the uranium being the starting or grandparent element and the hydrogen being the terminal or granddaughter
And THEN, on the 21st I have the pleasure of returning to one of the most beautiful places on the planet: Bend, Oregon. Every time I've played in Bend has been dreamy. It is an unhurried, fresh-air-fresh-people place. I hope to see all my lovely Oregonian pals there!!
one that was much lighter than an atom of the lightest chemical element, hydrogen. These particles were namedelectrons.It was further learned that atoms themselves contained electrons; the electron thus became the first knownsubatomic particle.Since electrons have negative electrical charge, but the at...
2. Hydrogen is the lightest element known . 3. Steady electric current can be produced by the electric cell (电池),invented by the Italian physicist A lessandro Volta 1(745 - 1827). 4. Distance is equal to speed multiplied by time. 5. The waves become weaker with the increased ...
A generalization of the above ideas on elements was put forward by Aristotle (384--322 BC) .元素的概念一般的看法是由亚里斯多德(公元前384—322 )提出的。He accepted the idea of four element ,but introduced the concept of transmutation of elements .他接受四大元素的概念,但是引入了元素的转换。Aris...
So, for example, lead has 82 protons and between 120 and 132 neutrons in its nucleus, whereas hydrogen, the lightest element, has just one proton and occasionally one or two neutrons. The number of protons in an atom of any given element is always the same. Physicists call this the ...
The term element was first used by Plato (428--347 BC ) who assumed that the particles of each element have a specific shape ,even thought such particle are too small to be seen .元素这个术语是由柏拉图首次使用,他假设每个元素的粒子有一个特定的形状,甚至认为这种粒子是小得看不见。Thus ,the...