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以下句子要轉成中文..幫幫我...
1.An atom consists of a positively charged nucleus which is surrounded by tiny negatively charged particles called electrons.
2.The arrows in the food chain show the direction in which energy is passed form one type of living thing to another.
3.there is a large number of free electrons in a good conductor that allows the flow of electric current.

2007-12-30 12:20:02 · 2 個解答 · 發問者 Wing Kei 2 in 科學 化學

4.Conductor allow electricity to pass through them.Insulator do not allow electricity to pass through them.
5.The resistance of a metal wore imcreases if its lenght increases. However ,the resistance of a metal wire decreases if its area increases.

幫幫我.....plz

2007-12-30 12:20:19 · update #1

2 個解答

1. An atom consists of a positively charged nucleus which is surrounded by tiny negatively charged particles called electrons.
原子含有一個帶正電荷的原子核,而稱為電子的帶負電荷的微小粒子,則環繞著原子核運行。

2. The arrows in the food chain show the direction in which energy is passed form one type of living thing to another.
食物鏈中的箭咀,顯示能量由一類生物轉移至另一類生物的方向。

3. There are a large number of free electrons in a good conductor that allows the flow of electric current.
在優良的導體中有大量的自由電子,讓電流流動。

4. Conductor allow electricity to pass through them. Insulator do not allow electricity to pass through them.
導體讓電流通過(它們),而絕緣體則不讓電流通過(它們)。

5. The resistance of a metal wire increases if its length increases. However, the resistance of a metal wire decreases if its area increases.
若果金屬線的長度增加,則金屬線的電阻值會較加。可是,若果金屬線的面積增加,則金屬線的電阻值會減少。

2007-12-30 12:55:30 · answer #1 · answered by Uncle Michael 7 · 0 0

1.原子包括由微小的激烈反應的微粒圍攏叫做電子的一個明確的激烈反應中堅力量。
2.箭頭在食物鏈顯示能量通過形式一類型生存事到另一個的方向。
3.那裡是很大數量的自由電子在承認電流流程的一個好指揮。
4.管理人允許電通過通過它們.絕緣體不允許電通過通過他們。
5.這金屬的抵抗佩帶了增強 如果它的長度增加。但是, 金屬線的抵抗減少如果它的區域增加

[有D字你打錯左哇~~]

2007-12-30 12:32:30 · answer #2 · answered by candychow1211 1 · 0 0

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