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1、熱網(wǎng)供熱計(jì)算公式供熱量=供水溫度回水溫度X熱網(wǎng)循環(huán)水流量1大卡千卡kcal=4 17kJ1 大卡 kcal=1 163w某臺(tái)機(jī)組熱網(wǎng)循環(huán)水量 4000t/h,供水溫度85°C、回水溫度55°C, 計(jì)算該機(jī)組每小時(shí)供熱量。供熱量=85-55X 4000/1000=120百萬(wàn)大卡120X4.17=500.4 百萬(wàn)千焦=500.4 吉焦GJ120X 1.163=13956X 104 瓦W =139.56 兆瓦M(jìn)W 千瓦時(shí)兆瓦時(shí)百萬(wàn)大卡噸蒸汽焰吉焦MKcalGJKW. hMW.hTiGcal1吉焦百萬(wàn)千焦12780. 2780. 240.41千瓦時(shí)0. 003610. 0010.

2、000860. 001431兆瓦時(shí)3.6100010. 861.431百萬(wàn)大卡4. 18711631. 16311.6671噸飽和蒸汽焙2.57000. 70.61初中英語(yǔ)語(yǔ)法歸納復(fù)習(xí):被動(dòng)語(yǔ)態(tài)重難點(diǎn):掌握八種常見時(shí)態(tài)的被動(dòng)語(yǔ)態(tài),并能根據(jù)不同情景,靈活運(yùn)用被動(dòng)語(yǔ)【知識(shí)總結(jié)歸納】概念:表示動(dòng)作與主語(yǔ)之間是被動(dòng)關(guān)系的句子是被動(dòng)語(yǔ)態(tài)二.主動(dòng)語(yǔ)態(tài)與被動(dòng)語(yǔ)態(tài)之間如何轉(zhuǎn)換We Visited that factory last summer -> 主動(dòng)語(yǔ)態(tài)狀語(yǔ)That factorywas visitedby us last summer t 被動(dòng)語(yǔ)態(tài)主語(yǔ)謂語(yǔ)賓語(yǔ)狀語(yǔ)三.各種不同時(shí)態(tài)的主動(dòng)語(yǔ)態(tài)與被動(dòng)

3、語(yǔ)態(tài)的比照時(shí)態(tài)主動(dòng)語(yǔ)態(tài)被動(dòng)語(yǔ)態(tài)般現(xiàn)在時(shí)(1 ) Do they speak French ?Is French spoken by them ?The room isn't used by themam / is / are + P ? P?(2 ) They don't use the room ?J?般過(guò)去時(shí)was / were + p.p.(1) The hunter killed a tige ?(2 )He wrote many stories last year ?A tiger was killed by the hunter.Many stories was w

4、ritten by him last yea ?現(xiàn)在進(jìn)行時(shí)am / is / are +being +p.p.(1) These workers are building a new bridge ?(2 )He is men ding his car ?A new bridge is being built by these workers ?His car is being mended by him?過(guò)去進(jìn)行時(shí)(1 )He was selling books ?Books were being built by him ?was / were + being + p.p.(2 ) They were discussing the plan at that time ?The plan was being discussed by them at that time .現(xiàn)

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