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Detail are introduced as following: transfering the LS equation to difference equation, setting the initial conditions for different shape explosive at different initiation way (point, line, plane, divergent or convergent); the dealing method of different edge conditions; how to draw the curve graph in two dimensional space or surface graph in three dimensional space with the calculated data.
本文提出了在三维直角坐标系中爆轰波传播LS方程离散化方法,建立了相应的差分方程,研究了对不同形状炸药在多种起爆形式(点、线、面、散心、聚心)下初值条件的设定,以及各种边界条件的处理方法。
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Minerals found in the region has 31 major categories, representing the province's mineral resources have been found in 23% and found that more than 160 types of mineral point, the proved reserves of 15 kinds of minerals, of which: ilmenite, graphite ore are domestic large mineral reserves of 6,000,000 tons and 4,000,000 tons or more; limestone, gypsum, Glauber's salt, granite and coal and other non-metallic fuel and energy resources in the northwest edge itself, which proved coal reserves of 1.068 billion tons, oil-page rock 248 million tons, 7.73 million tons of Glauber's salt, 1.17 billion tons of limestone, gypsum 140 million tons, due to a low degree of geological exploration, the comprehensive development of a low utilization rate, at present the development and utilization of mineral ores accounted for only 30% of the region, cooperating with the outside great potential for development.
全区已发现矿产9大类31种,约占全省已发现矿产的23%,发现各类矿产点160余处,探明储量的矿种15种,其中:钛铁矿、石墨矿属国内特大型矿产,储量分别为600万吨和400万吨以上;石灰石、石膏、芒硝、花岗岩和煤炭等非金属和能源燃料类资源在西北占居优势,其中煤炭探明储量10.68亿吨、油页岩2.48亿吨、芒硝773万吨、石灰岩11.7亿吨、石膏1.4亿吨,由于地质勘探程度低,综合开发利用率低,目前开发利用的矿种仅占全区矿种的30%,对外合作开发潜力巨大。
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The strip (6) has an upwardly protruding locking element (8) engaging in a locking groove (14) in the rear side (16) of the other joint edge (4) to form a second mechanical connection locking the panels (1, 2) in a second direction (D2) parallel to the principal plane of the panels and at right angles to the joint.
簧片(6)具有一个向上凸出并能与另一连接棱边(4)的背面(16)上的锁定槽(14)啮合的锁定件(8),以便形成第二机械连接,在平行于镶板基本平面并与连接棱边成一直角的镶板第二方面(D2锁紧(1,2)。
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The company operates plants at DeLisle, Miss.; New Johnsonville, Tenn.; Edge Moor, Del.; Altamira, Mexico; and Kuan Yin, Taiwan; all of which use the chloride manufacturing process. The company also operates a plant in Uberaba, Brazil, for finishing titanium dioxide and a mine in Starke, Fla. Technical service centers are located in Uberaba, Brazil; Mexico City, Mexico; Mechelen, Belgium; Kuan Yin, Taiwan; Ulsan, Korea; Wilmington, Del.; and Shanghai, China, to serve the European, Middle Eastern, United States, Asian and Latin America markets.
作为美国杜邦公司的业务部门之一,杜邦钛白科技事业部在美国密西西比州的DeLisle、田纳西州的NewJohnsonville及特拉华州的EdgeMoor,墨西哥的Altamira和中国台湾的观音均设有生产工厂,全部采用氯化法钛白粉生产工艺;同时,杜邦钛白科技在巴西的Uberaba拥有一座生产钛白粉的研磨和包装工厂,以及在美国佛罗里达州的Starke拥有一座采矿工厂;杜邦钛白科技的技术服务中心分别位于巴西的Uberaba、墨西哥的墨西哥城、比利时的Mechelen、台湾观音、韩国蔚山、中国上海和美国特拉华州的威明顿,服务于拉丁美洲、欧洲、中东、亚洲和北美等全球市场。
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Methods 49 cases with unilateral cleft lip were repaired on modified Millard's method. These ways include: The improved type"Ⅰ"didn't make cut under the anterior naris;the distinction between the wet and dry vermilion of the lip, and the application in the operation; closed in the wound near at pyriform aperture edge by"L-flap"and"M-flap"; relaxed alae nasi and made a slack cut in the nasal cavity; flexible use for"5~x"back cut and "C-flap".
对49例先天性单侧唇裂应用改良的Millard法修复:改良Ⅰ式不在患侧鼻孔下方作切口,减少了瘢痕形成;利用患侧干燥红唇组织重建健侧唇弓部分的红唇欠缺;利用小瓣&L&、&M&连同唇颊黏膜瓣来参与闭合梨状缘附近的伤口促进愈合;松解患侧鼻翼外侧脚及鼻腔内作松弛切口重建前鼻孔;灵活掌握&5~x&的返切和&C&瓣的旋转推进方向来延长唇高。
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Looks forward from the driver seat, the large-scale white bottom three barrel type display boards attach the chrome-plating outer edge, the identification effect are clear, and conformity driving computer and so on multi-dimensional information, but controls on the stage the 2-DIN sound main engine and the air-conditioning system connection, regardless of being the pressed key or elects Niu Jiecai the large scale design, uses and operates the convenience while you are at it; Although is very abundant is providing the horizontal aspect not to calculate prominently, as soon as but many unique American designs and the spatial use, were still worth raising specially.
从驾驶座向前望去,大型白底三筒式仪表板附有镀铬外框,辨识效果清晰,并整合行车计算机等多元信息,而中控台上的2-DIN音响主机与空调系统接口,无论是按键或选钮皆采大型化设计,使用与操作便利就手;尽管酷博在配备水平方面并不算突出,但不少独特的美式设计与空间利用,仍然值得特别一提。
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The pots and pans: each batch of take part has joined acetic acid (4%) and the top edge Hing, boiled, 30min 0.5cm, date-stamping, when heated to keep micro-boiling, and finally add acetic acid (4%) to the original volume, placing 24h at room temperature, pour into the above lixivium clean test for forcarbonated.
炊具:每批取二件,分别加入乙酸(4%)至距上边缘0.5cm处,煮沸30min,加热时加盖,保持微沸,最后补充乙酸(4%)至原体积,室温放置24h后,将以上浸泡液倒入清洁的玻璃瓶中供测试用。
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Because defends external national the invasion, must need the quite firm fortification or the castle, therefore the ancient babylonian can not but use crops' as well as bushes and so on plant's the straw stalk makes the fuel, makes certain shape the soil to burn the quite solid brick bat to do for the main building material, uses for the building big city wall and the fortress, and displayed the acme, therefore only then north two river basin edge mountainous area, only then appeared certain scale stone system construction, but compared the ancient Egypt's stone system creation on "big Wu Jianxiao" Wu, because the soil burn brick or at that time burns the technical limit, basicIs unable to compare with the hard rock, although the brick uses, extremely nimble and may the rapid construction broad in scale building or the urban cluster, but radically is unable to achieve actually Shi Zhi constructs that kind of altitude as well as in time eternal degree, therefore is called by the historian the world ancient times one of seven wonders of the world "the airborne garden" has become on the ruins historical miracle, now only then also in continues in the decency the remnant brick to break the tile to relate once magnificently with glory, long-time, all vestiges could even more be not much left.
由于防御外来民族的侵扰,必须需要比较坚固的防御工事或者城堡,因此古巴比伦人不得不用农作物以及茅草等等植物的秸秆做燃料,把制成一定形状的泥土烧制成比较结实的砖块来做为主要的建筑材料,用来建筑高大的城墙和堡垒,并发挥到了极致,因此只有在两河流域北部的边缘山区,才出现了一定规模的石制建筑,但相比古埃及的石制创作就&大巫见小巫&了,由于泥土烧制的砖或受当时烧制技术的限制,根本无法与坚硬的岩石相比,虽然砖使用起来,非常灵活并可以迅速的建造规模宏大的建筑物或者城市群,但却根本无法达到石制建筑的那种高度以及在时光中的永恒程度,于是被史学家称为世界古代七大奇迹之一的&空中花园&就成了废墟上的历史奇迹了,如今只有还在继续风化中的残砖断瓦在诉说着曾经的辉煌与荣耀,更长久一点,一切遗迹就会更加的所剩无几了。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力