【正文】 meets some ，它會(huì)遇到某種阻力。（動(dòng)名詞作主語）By changing the resistance，we can change the ，我們就能改變電流。 plants fueled by uranium account for a continually increasing share of the load, but their construction is slow and uncertain because of the difficulty of raising capital to meet the sharply rising cost of construction, constantly increasing safety requirements which cause redesign, public opposition to the operation of the plants, and delays in through a circuit, the current will lose part of it ，要損耗掉一部分能量。 stations have ratings between 200 MW and 1500 MW so as to attain the high efficiency and economy of a large ，以實(shí)現(xiàn)大站的高效經(jīng)濟(jì)（運(yùn)行）。 plants can cause low dissolved oxygen levels in the water, a problem that is harmful to riverbank ——（這是）一個(gè)對(duì)岸邊生存環(huán)境有害的問題。 kind of loads, especially those consume energy calculated by standard coals more over 10 thousands of tons per year, has a name of high energy consuming ，尤其是那些年耗能萬噸標(biāo)準(zhǔn)煤以上的負(fù)荷，被稱為高耗能負(fù)荷。, loads are devices those consume electric energy or electric power consumed by customers mainly in distribution ，負(fù)荷是主要在配電網(wǎng)中消耗電能的設(shè)備或者由用戶消耗的功率。一次系統(tǒng)也給經(jīng)過單相三線電路為居民用電和商業(yè)用戶提供120V/240V二次電壓的配電變壓器供電。電容的測(cè)量單位是法拉。Electrical energy can be stored in two metal plates separated by an insulating a device is called capacitor or ability to store electrical energy is is measured in farads 電能可儲(chǔ)存在由一絕緣介質(zhì)隔開的兩塊金屬極板內(nèi)?！癆 per unit of B” 表示 “單位B上的A” 或者“A/B”。 exists between the conductors and is the charge on the conductors per unit of potential difference between ，等于導(dǎo)體上的電荷（電量）與導(dǎo)體間的電勢(shì)差之比。, the capability of lines of the same length varies at a rate somewhat greater than the square of the ，長(zhǎng)度相同的線路的容量，以比電壓的平方略大的比率變化。2)The instruments present include some digital ones which are relative to instruments present include some digital ones relative to 。3)The testing of a crossfield generator will be described in this section with chief reference to the tests that are normally taken on every machine before it leaves the makers ，它主要涉及每臺(tái)電機(jī)在離開制造廠前應(yīng)進(jìn)行的試驗(yàn)。1)It has been mentioned above that the electrons in a metalare able to move freely through the metal, that their motion constitutes an electric current in the metal and that they play an important part in conduction of ：金屬中電子能自由地通過金屬，電子的移動(dòng)在金屬中形成了電流，電子在熱傳導(dǎo)中起著重要的作用。2)As illustrated in , there is a feedback element in the closedloop in , there is a feedback element in the closedloop ，這個(gè)閉環(huán)系統(tǒng)中有一個(gè)反饋元件。2)What does a fuse do? It protects a function of a fuse is to protect a 。3)The transistor, which is working with correctly polarities, can work as an transistor working with correctly polarities can work as an ，作用就像放大器。1)The power supply, which is shown in blockdiagram in , is a singlephase switchmode power supply shown in blockdiagram in is a singlephase switchmode 。4)Changing resistance is a method for controlling the flow of the 。2)An object bees is placed in the being placed in the sun, an object bees 。電容的測(cè)量單位是法拉。4)The meters are calibrated and the scale is designed to read the value of the desired ，以便讀出期望的數(shù)值。2)Instrument transformers are installed on the highvoltage 。經(jīng)過5個(gè)月的訓(xùn)練，病人與他新的手拿起一個(gè)蘋果，把它吃掉了。事實(shí)上，神經(jīng)學(xué)家格特經(jīng)營(yíng)假肢時(shí)，例如，用戶可能只是告訴它取消，降低，或打開或關(guān)閉它的手，或即使掌握在某一個(gè)對(duì)象的位置，讓機(jī)器人做休息。多諾霍還正與研究人員在羅得島普羅維登斯Cyberkinetics的新型硅100微電極陣列，他說，將提取神經(jīng)信號(hào)容易得多。同時(shí)，施瓦茨和密歇根大學(xué)團(tuán)隊(duì)正在開發(fā)的電極植入更容易和更安全和更安全地交互與自然的腦組織。在Schwartz的情況下，一些電極已持續(xù)長(zhǎng)達(dá)3年。植入人類，而不是他們至少建立植入電極是安全的陣列之前，必須克服許多其他障礙。但Nicolelis是樂觀的，這個(gè)障礙是可以克服的，因?yàn)槿藗兛梢杂每陬^指示訓(xùn)練。如果猴子被允許查看計(jì)算機(jī)屏幕上的機(jī)器人和食品，它可以讓機(jī)器人伸手去獲取食物。”在ALS患者，他們保留了一些轟動(dòng)，甚至被摧毀后，大多數(shù)運(yùn)動(dòng)神經(jīng)元，利用觸覺反饋會(huì)特別有用。研究人員希望，這將使猴子要學(xué)會(huì)拿起一個(gè)對(duì)象，沒有破碎或刪除。猴子也將收到來自其皮膚表明的力量，它的爪抓住對(duì)象的小振動(dòng)器觸覺反饋。最近，杜克大學(xué)的研究人員已經(jīng)增加了一個(gè)新的機(jī)器人爪手進(jìn)入循環(huán)?？茖W(xué)家們?nèi)缓髷嚅_操縱桿猴子雖然仍然可以處理它，跑了神經(jīng)信號(hào)解碼的游戲。他強(qiáng)調(diào)，學(xué)習(xí)，游戲的視覺反饋的指導(dǎo)下，這種能力的關(guān)鍵。研究者觀察到的64個(gè)神經(jīng)元的放電模式的變化，改善動(dòng)物的技能聯(lián)系，說明實(shí)踐的腦電波游戲珩磨細(xì)胞的反應(yīng)（科學(xué)，2002年6月7日，1829）。他們綁住猴子的手，和他們玩游戲，而他們的大腦信號(hào)直接控制一個(gè)光標(biāo)。信用： /杜克大學(xué)最近，神經(jīng)學(xué)家安德魯直接連接。猴子移動(dòng)手臂產(chǎn)生正確的大腦信號(hào)模式，這將無法正常工作癱瘓的人。他們翻譯成指令的機(jī)器人手臂這些天然的神經(jīng)元模式和觀看機(jī)器人乖乖地模仿猴子的手臂動(dòng)作。他們教這些猴子用自己的雙手操作操縱桿，操縱游標(biāo)，或達(dá)到了他們的武器搶一塊水果，并把它帶到自己的嘴巴。一臺(tái)電腦郁悶的杠桿，只要拿起這樣，在目前的格局顯示，當(dāng)老鼠與它的爪子移動(dòng)杠桿的微絲神經(jīng)信號(hào)。一些研究人員認(rèn)為，是更大規(guī)模的陣列，以先進(jìn)的假肢的關(guān)鍵。在目前的設(shè)計(jì)，肯尼迪和他的同事兩個(gè)電極植入到病人的大腦，他們正在向植入時(shí)間8。）光通信技術(shù)肯尼迪發(fā)明通過一種新的電極在大腦中，化學(xué)品襯玻璃錐哄神經(jīng)元增長(zhǎng)錄音電線通過電極和紐帶。雷曾遭受了嚴(yán)重的中風(fēng)，離開了他幾乎完全癱瘓，學(xué)會(huì)調(diào)整自己的神經(jīng)信號(hào)來操作游標(biāo)，使他拼打，如報(bào)表的圖標(biāo)“我餓了?？夏岬希偛课挥趤喬靥m大的神經(jīng)信號(hào)的頭，和他的神經(jīng)外科醫(yī)生的同事羅恩Bakay和Princewill Ehirim是迄今唯一一支建立在人