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Abstract The museum, as an urban landscape, has been ignored for a long time in the shadow of its prominent internal funct......
This paper analyzes the phenomenon of rebound impact and its negative influence on the present hydraulic breaker. To get......
1. If I like it, it’s mine. 2. If it’s in my mouth, it’s mine. 3. If I can take it from you, it’s mine. 4. If ......
1.sunny weather阳光明媚的天气 The warm sunny weather always give me a sense of well-being. 阳光明媚而温暖的天气一......
The whistle blows, the crowd roars,and 22 armored athletes crash intoeach other with such force that play-ers have broke......
To investigate the fretting wear of steel wires in hoisting ropes, specimens were made of 6 × 19 point contact ropes. A......
1. A crocodile had a big, powerful tail. When it walked through a wood, the small trees were broken. 一条鳄鱼有一条非常......
一、不定式的被动语态 不定式的被动语态由“to be+过去分词”构成,其用法与不定式的主动形式相似,只是表示被动意义。如: T......
过去分词在句子中可作表语、定语、状语、补语(主补、宾补)等。下面就过去分词作宾补的用法作一下总结。 一、能够接过去分词......
紧紧抓住梦想, 梦想若是消亡, 生命就像鸟儿折了翅膀, 再也不能翱翔。 紧紧抓住梦想, 梦想若是消丧, 生命就像贫瘠的......
英语口语中有很多常用的精短句,言简意赅。只要我们能在适当时机和场合恰当使用这些句子,就能使我们的英语口语表达增添不少色彩;同时......
非谓语动词中过去分词的用法你掌握了多少呢?经常给自己的语法知识梳梳辫子, 能够让你脑中有一个清晰的语法网络。下面让我们具体来......
The presence of abscisic acid (ABA) in Korean pine seed extract was identified by gaschromatography-mass spectrometry (......
Oh, no! Bob was driving on the 55 Freeway in Costa Mesa when his car rolled over. He was driving too fast around a curve (......
AIM: To explore the growth inhibition and apoptosis-inducing effect of apigenin on human gastric carcinoma SGC-7901 cell......
A new kind of high strength, high toughness and high plasticity spring steel has been developed. The strength, the redu......
The multi-impact characteristics and failure mechanism of two kinds of automotive enginechain made in China are studied ......
Remembering it, 想起它, Its every detail, 它的每一个细节, Like a fairy tale. 就像个童话故事。 It was nice, 它很好, ......
In this paper,the invulnerability and cascade failures are discussed for the urban bus network.Firstly,three static mode......
導读:20元钱纸币不管你把它弄成什么样,它仍然值20元;人又何尝不是如此,是金子就始终会发光。 A well-known speaker started off h......
This paper discussed the importance of the delayed neutron detection system.We improved the delayed neutron detection st......
In order to overcome the flaws of present domestic devices for detecting faulty wires such as low precision,low sensitiv......
Wire ropes,employed extensively in coal mine hoists and transportation systems are subject to damage due to wear,corrosi......
Using the method of analogy, this paper built the social information field, information field force model and the inform......
众所周知,用yes或no回答的疑问句叫作一般疑问句,但一般疑问句并不一定都用yes或no来回答,请看下面几种情况。......
断齿是矿用减速机齿轮一种主要的失效形式,直接决定了减速机的使用寿命和开机率.研究分析了影响齿轮断齿的各项因素,从设计、工艺......
目的 比较3种不同方式寻找下泪小管断裂鼻侧断端的临床效果.方法 对24例新鲜断裂的外伤性下泪小管,依次通过3种方式(注水寻找法、......
为更好的防治带式输送机的压死拉断问题,基于某公司DTL100/75-2×160型带式愉送机运行工况,分析了皮带压死拉断故障原因与当前......
为了解决破碎顶板条件下工作面的安全回采问题,本文以马兰矿12704工作面为研究对象,分析了12704工作面顶板破碎失稳的原因,结合127......
针对1209工作面回风巷掘进施工穿4条正断层、容易发生冒落的情况,设计了锚杆+钢筋托梁+金属网片+顶槽钢锚索+帮锚索+π型钢梁棚+密......
目的比较不同弯曲度根管用显微超声技术取折断器械时对根管壁的损伤程度。方法体外建立不同弯曲度根管内根尖1/3器械折断模型30例,手......
通过深孔钻进实例,阐述了舞阳铁矿深孔钻进施工工艺及钻探事故的预防与处理技术措施,对类似矿种深孔钻进有一定的借鉴作用。......
饮用水中砷含量超标、氨氮含量超标会对人体造成极大伤害,为解决我国部分地区引用水水源中砷含量超标及氨氮含量超标问题,开展小试......
简单介绍了立筒仓/浅圆仓存放玉米时出现玉米破碎的原因,并有针对性地提出了一些解决措施。......
对水泥混凝土路面早期裂缝及断板的主要原因进行了分析,同时对预防裂缝及断板提出有效措施与方法。......
从水泥混凝土面板的物理、化学特性和施工操作不合规范两个方面谈了路面断板形成的原因,并提出了相应的防止措施.......
论述了多种使谷物颗粒物理破坏和受污染程度最小化的方法,分析了输送设备的正确使用对谷物颗粒质量控制的影响。......
超长钻头的悬伸量长,加工时容易发生折断现象。利用因果图分析发生折断的可能影响因素,找出主要原因是加工参数和加工方式不合理,......
主要论述在坚硬的石英岩层,节理极其发育,涌水压力达0.2MPa,涌水量达20t/h的施工条件下,采用特殊钻头全面钻进不提钻、稳定浆液灌浆并适......
[目的]挽救冰雪灾害的银杏果叶两用林植株,使其尽快恢复生机。[方法]对受冰雪灾害的银杏植株进行锯除断枝、清场、松土、施肥、修......
锦丰露天矿岩体强度低、易风化崩解、遇水易泥化。按照“分区支护”的原则,分别采取了喷锚网+长锚索支护、长锚索+钢带支护、喷锚网支......
针对新疆大南湖一矿永久避难硐室片帮、顶板变形、底鼓、裂隙发育等情况,进行了高掺量粉煤灰注浆加固研究。通过对注浆后的围岩胶......
1302工作面回采至425 m处,148~158~#支架前方端面顶板破碎,导致支架移架困难、端面距增加、煤壁片帮严重,降低了工作面回采速度。......