【導(dǎo)讀】進行了歸納總結(jié)。對應(yīng)急照明的供電及火災(zāi)時是否切斷，提出了自己的。看法，并論述了應(yīng)急照明線路敷設(shè)、應(yīng)急照明燈具應(yīng)遵循的要求?！墩諛?biāo)》第4、1、2條制定：“照明種類可分為正常照明、應(yīng)急照明、值班照明、警衛(wèi)照明和障礙照明。應(yīng)急照明可包括疏散照明、安全照明。由于近年來，火災(zāi)的情況不斷發(fā)生，使設(shè)計工程師在觀念上，一提到應(yīng)急照明就認(rèn)為是火災(zāi)狀態(tài)下的應(yīng)急照明。實際上，《照標(biāo)》所指。所以，工程應(yīng)急照明系統(tǒng)的設(shè)計，不僅要滿足防火規(guī)范要求。日益突出，引起了消防部門、設(shè)計單位的高度重視。但是我國還缺乏完。年中國照明學(xué)會發(fā)布了《應(yīng)急照明設(shè)計指南》，吸取了國際上的先進標(biāo)準(zhǔn)，總結(jié)了我國的經(jīng)驗，對設(shè)計有一定的指導(dǎo)意義。應(yīng)急照明是現(xiàn)代公共。建筑及工業(yè)建筑的重要安全設(shè)施，它同人身安全和建筑物安全緊密相關(guān)。一些發(fā)達國家和國際照明委員會都提出了很高的。兩者區(qū)分開來較適宜。

　　

【正文】 Clouds massed in the west, pink and pearl and yellow. The sun phased from orange through red to yellow. You sha ke your head? T he sun was the price of the cities, you see. In a hurry, I depopulateor, rather, go the elemental route. At that altitude artifacts would have been distracting. Shading and texture bees everything for me. That39。s what I meant about gliding it being a bit different. So, I bore to the west till the woods gave way to surface green, which quic kly faded, dispe rsed, broke to brown, tan, yellow. L ight and crumbly then, splotched. The price of that was a storm. I rode it out as much as I could, till the lightnings for ked nearby and I feared that the gusts were getting to be too much for the little glider. I toned it dow n fast then, but got more green below as a result. Still, I pulled it out of the storm with a yellow sun firm and bright at my back. After a time, I got it to go desert beneath me again, stark and rolling. Then the sun shrank and strands of cloud whipped past its face, erasing it bit by bit. That was the shortcut that took me farther from Amber than I had been in a long while. No sun then, but the light remained, just as bright but eerie now, directionless. It tricked my eyes, it screwed up pe rspective. I dropped lower, limiting my range of vision. Soon large rocks came into view, and I fought for the shapes I remembered. Gradually, these occurred. The buc kling, flowing effect was easier to achieve under these conditions, but its production was physically disconcerting. I t made it even more difficult to judge my effectiveness in guiding the glider. I got lower than I thought I was and almost collided with one of the roc ks. Finally, though, the smokes rose and flames danced about as I remembered them conforming to no particular pattern, just emerging here and there from crevasses, holes, cave mouths. Colors began to misbehave as I recalled from my brief view. Then came the actual motion of the rocksdrifting, sailing, like rudderless boats in a place where they wring out rainbows. By then, the air currents had gone crazy. One updraft after another, like fountains, I fought them as best I could, but knew I could not hold things together much longer at that altitude. I rose a considerable distance, fetting everything for a time while trying to stabilize the craft. When I looked down again, it was like viewing a freeform regatta of black icebergs. The roc ks were racing around, clashing together, backing off, colliding again, spinning, arcing across the open spaces, passing among one another. Then I was slammed about, forced down, forced upand I saw a strut give way. I gave the shadows their final nudge, then looked again. The tower had appeared in the distance, something brighter than ice or aluminum stationed at its base. That final push had done it. I realized that just as I felt the winds start a particularly nasty piece of business. Then several cables snapped and I was on my way downlike riding a waterfall. I got the nose up, brought it in low and w ild, saw where we were headed, and jumped at the last moment. T he poor glider was pulverized by one of those peripatetic monoliths. I felt worse about that than I did about the scrapes, rips, and lumps I collected. Then I had to move quic kly, because a hill was racing toward me. We both veered, fortunately in different directions. I hadn39。 t the faintest notion as to their motive force, and at first I could see no pattern to their movements. The ground varied from warm to extremely hot underfoot, and along with the smoke and occasional jets of f lame, nasty smelling gases were escaping from numerous openings in the ground. I hurried toward the tower, following a necessarily irregular course. It took a long while to cover the distance. Just how long, I was uncertain, as I had no way of keeping trac k of the time. By then, though, I was beginning to notice some interesting regularities. First, the larger stones moved at a greater velocity than the smaller ones. Second, they seemed to be orbiting one another cycles within cycles within cycles, larger about smaller, none of them ever still. Perhaps the prime mover was a dust mote or a single moleculesomewhere. I had neither time nor desire to indulge in any attempt to determine the center of the affair. Keeping this in mind, I did manage to observe as I went, though, enough so that I was able to anticipate a number of their collisions well in advance. So Childe Random to the dark tower came, yeah, gun in one hand, blade in the other. The goggles hung about my neck. With all the smoke and confused lighting, I wasn39。t about to don them until it became absolutely necessary. Now, whatever the reason, the rocks avoided the tower. While it seemed to stand on a hill, I realized as I approached that it would be more corre ct to say that the rocks had scooped out an enormous basin just short of it. I could not tell from my side, however, whether the effect was that of an island or a peninsula. I dashed through the smoke and rubble, avoiding the jets of flame that leaped from the cracks and holes. Finally I scrambled up the slope, removing myself from the courseway. Then for several moments I clung at a spot just below any line of sight from the tower. I checked my weapons, controlled my breathing, and put on the goggles. Everything set, I went over the top and came up into a crouch. Yes, the shades worked. And yes, the beast was waiting. 25 It was a fright all right, because in some ways it was kind of beautiful. It had a sna ke body as big around as a barrel, with a head sort of like a massive claw hammer, but kind of tapered to the snout end. Eyes of a very pale green. And it was clear as glass, with very faint, fine lines seeming to indicate scales. Whatever flowed in its veins was reasonably clear, also.