日韩人妻无码av一二三区,亚洲视频在线观看,久久国产精品无码一区二区三区,韩国午夜理论在线观看,亚洲中文久久精品无码

最(zui)有可能成為(wei)21世紀主(zhu)要的新能源之一，什么是(shi)生物質(zhi)能源？

生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)是由(you)植物(wu)的(de)(de)(de)光(guang)合作(zuo)用(yong)固定(ding)于(yu)(yu)地球上(shang)的(de)(de)(de)太陽能(neng)(neng)，最(zui)(zui)有可能(neng)(neng)成(cheng)為21世(shi)(shi)紀主(zhu)要(yao)的(de)(de)(de)新能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)之(zhi)一。據估計，植物(wu)每年貯存(cun)的(de)(de)(de)能(neng)(neng)量約相當(dang)于(yu)(yu)世(shi)(shi)界(jie)(jie)主(zhu)要(yao)燃料消耗的(de)(de)(de)10 倍；而(er)作(zuo)為能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)的(de)(de)(de)利(li)用(yong)量還不到其總(zong)(zong)量的(de)(de)(de)l%。這(zhe)些未加以(yi)利(li)用(yong)的(de)(de)(de)生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)，為完成(cheng)自(zi)然界(jie)(jie)的(de)(de)(de)碳循(xun)環，其絕大部(bu)分(fen)由(you)自(zi)然腐解將能(neng)(neng)量和碳素釋放(fang)，回到自(zi)然界(jie)(jie)中(zhong)。事實 上(shang)，生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)是人類利(li)用(yong)最(zui)(zui)早、最(zui)(zui)多、最(zui)(zui)直接的(de)(de)(de)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，至(zhi)今，世(shi)(shi)界(jie)(jie)上(shang)仍有15億以(yi)上(shang)的(de)(de)(de)人口以(yi)生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)作(zuo)為生(sheng)(sheng)(sheng)活能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)。生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)燃燒是傳統(tong)的(de)(de)(de)利(li)用(yong)方式，不僅熱效(xiao)率(lv)低 下(xia)，而(er)且勞(lao)動(dong)強(qiang)度大，污染嚴(yan)重。通過生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)轉換技術(shu)可以(yi)高效(xiao)地利(li)用(yong)生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，生(sheng)(sheng)(sheng)產(chan)各(ge)種清潔燃料，替代煤炭，石(shi)油(you)和天(tian)然氣等燃料，生(sheng)(sheng)(sheng)產(chan)電力。而(er)減(jian)少對礦 物(wu)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)的(de)(de)(de)依賴，保護(hu)國家能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)資源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)，減(jian)輕能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)消費給環境造成(cheng)的(de)(de)(de)污染。專家認為，生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)將成(cheng)為未來(lai)持續(xu)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)重要(yao)部(bu)分(fen)，到2015年，全球總(zong)(zong)能(neng)(neng)耗將有40% 來(lai)自(zi)生(sheng)(sheng)(sheng)物(wu)質(zhi)(zhi)能(neng)(neng)源(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)。