ÍøÂç²ÊƱ¶Ä²©±¶Í¶:Ïà¹ØÈí¼þ ²¿Âä³åͻͬ²½ÊÖ»úÖúÊÖ£¬¼¢»ÄÍêÕû°æÏÂÔØ£¬Ç°·æͻϮ°æ±¾£¬chrome°æ¼¼ÇÉ£¬»úÓ빦ÄÜ»úÇø±ð£¬ÂòÍæÓÎÏ·»®µÃÀ´Âð£¬÷ÈÀ¶5Çà´º°æˢϵͳÉý¼¶

"Yesterday crowds of believers prayed for peace, for that blessing which is only valued when it is lost. Let us repeat our supplications twofold, let us increase our zeal. Lord! O Lord! listen to the voice of Thy people who pray to Thee! Be merciful! Give us back our peace!"¥ô¹�¥Ô±¤And at the same moment he turned round and joined the others.¥¥Çõ©²

He looked for a moment at the spot where the deaths happened, from which the victims were carried away, and then suddenly asked in a kinder tone of voice:Û¥¥ê¥ªÕ⥤ȲÇ54¥â¤¤·¯127¤¥¥®¤¤¤ß¥ì¸ö¦

Planing machines of the most improved construction are driven by two belts instead of one, and many mechanical expedients have been adopted to move the belts differentially, so that both should not be on the driving pulley at the same time, but move one before the other in alternate order. This is easily attained by simply arranging the two belts with the distance between them equal to one and one-half or one and three-fourth times the width of the driving pulley. The effect is the same as that accomplished by differential shifting gearing, with the advantage of permitting an adjustment of the relative movement of the belts.î½¥¤¼à¥£This mode of reasoning will lead to proper estimates of the difference in value between good tools and inferior tools; the results of performance instead of the investment being first considered, because the expenses of operating are, as before assumed, usually ten times as great as the interest on the value of a machine.¶¥ÅÏ«¤±¤ï­«¤�¥¥Ö¤¤Ö

"The Acting Burgomaster,¥°¥¤�¥º¥¾¥ÚHow many soldiers had fallen in consequence of this attack by francs-tireurs he knew not; which troops had witnessed the occurrence he could not say. All he did know was that these troops had left in the morning, leaving a small force behind to impose the punishment.¥¤Çê½

Presuming an engineering establishment to consist of one-storey buildings, and the main operations to be conducted on the ground level, the only vertical lifting to be performed will be in the erecting room, where the parts of machines are assembled. This room should be reached in every part by over-head travelling cranes, that cannot only be used in turning, moving, and placing the work, but in loading it upon cars or waggons. One result of the employment of over-head travelling cranes, often overlooked, is a saving of floor-room; in ordinary fitting, from one-third more to twice the number of workmen will find room in an erecting shop if a travelling-crane is employed, the difference being that, in moving pieces they may pass over the top of other pieces instead of requiring long open passages on the floor. So marked is this saving of room effected by over-head cranes, that in England, where they are generally employed, handling is not only less expensive and quicker, but the area of erecting floors is usually one-half as much as in America, where travelling-cranes are not employed.¤¤ìɤ¤¥¤¥ÀÐI walked about a little longer to examine the damage done. The fine Pont des Arches was for the greater part destroyed by the retreating Belgians, as well as the Pont Maghin. This is a pity, especially as regards the first-named bridge, so famous as a work of art, and the more so as other bridges had not been touched and could be used by the Germans. The bombardment did not damage the town to any great extent, but it was remarkable that the largest houses had suffered most.¥©¥·¥§¥¥¥�ĥʤ»èæ¹

The main point in hardening and the most that can be done to avoid irregular contraction, is to apply the bath so that it will act first and strongest on the thickest parts. If a piece is tapering or in the form of a wedge, the thick end should enter the bath first; a cold chisel for instance that is wide enough to endanger cracking should be put into the bath with the head [116] downward.¤Â¥Õ¥¥Ä¤¤¥¤¤�¥¤£¥©È¥¥¤¥Å5. Hydraulic machinery comes nearest to filling the required conditions in handling material, and should be employed in cases where the work is tolerably uniform, and the amount of handling will justify the outlay required.¤¥±¤È¤¥

�ᥥ©ëOn the same day I wrote as follows about Dr. Goffin:—饥µA pattern-maker no sooner sees a casting than he imagines the kind of pattern employed in moulding it; a moulder will imagine the plan of moulding and casting a piece; while an engineer will criticise the arrangement, proportions, adaptation, and general design, and if skilled, as he ought to be, will also detect at a glance any useless expense in patterns or moulding.¡¤ª¤¤¥¼Õ¥¥

A planing machine with a running platen occupies nearly twice as much floor space, and requires a frame at least one-third longer than if the platen were fixed and the tools performed the cutting movement. The weight which has to be traversed, including the carriage, will in nearly all cases exceed what it would be with a tool movement; so that there must exist some very strong reasons in favour of a moving platen, which I will now attempt to explain, or at least point out some of the more prominent causes which have led to the common arrangement of planing machines.¥ß®È¥During the fights round the forts I made a good many tours and was able to contradict several German reports about alleged successes. The atrocities in the villages around Liège did not cease, and constantly fresh crowds of refugees came to Maastricht.ÏÃÚÚThe German artillery had taken up their positions here, and bombarded the forts in their immediate neighbourhood. These did not fail to answer, and rained shells on the enemy's batteries. One heard their hissing, which came nearer and nearer, until they fell on the slopes or the tops of the hills and burst with a terrific explosion. Many a time we saw this happen only a few hundred yards away. Then the air trembled, and I felt as if my legs were blown from underneath me. Broken windows too fell clattering on the "stoeps."¥¤²¥¤¥¥¤

In the use of hydraulic apparatus for transmitting and applying power, there is, however, this difficulty to be contended with: water is inelastic, and for the performance of irregular duty, there is a loss of power equal to the difference between the duty that a piston may perform and what it does perform; that is, the amount of water, and consequently the amount of power given off, is as the movement and volume of the water, instead of as the work done. The application of hydraulic machinery to the lifting and handling of weights will be further noticed in another place.¥¥¤¤Ù¥¥¤ÑÓËThe road along which I walked, the main road between Visé and Liège, was laid under fire from various forts, and every moment I saw on my left clouds rise up from the rocky heights that run along the whole of the Meuse. These clouds were partly formed by smoke from the guns mounted by the Germans against the forts, partly by volumes of earth thrown up by the projectiles from the broken-up soil.Ö̤¥¥¤3. The course or direction of transmission, whether in straight lines or at angles.¥¤¥Öóɵ¤

I stood near the spot where the ferry-boat used to take people across; but to cross was now out of the question, for any one alighting on the opposite side would be landed in the scorching glare. Therefore, I returned to Lixhe, where I might try to cross the river by the pontoon-bridge, and get to Visé along the other bank of the Meuse.¥°Ç¥­¥¸�¤¶¥Þ¾¤¥¥¤¥à�`¼ÚÑØ¥¥