頂鉸 的英文怎麼說
中文拼音 [dǐngjiǎo]
頂鉸
英文
apex hinge-
William ' s favorite room was said to be the library with its collections of more than 5, 000 books, ancient greek vases, and an antique spanish ceiling suspended by cables so it will sway in the event of an earthquake ( all the antique furnishings and treasures are anchored as a precaution as this is earthquake country )
威廉最喜歡的房間據說是圖書室，裏面有收藏的5 ， 000多本書籍，古希臘的花瓶，以及一個用纜索懸吊起來的古代西班牙吊頂，一旦發生地震，吊頂就會搖擺（所有的古代傢具和珍寶都被事先用鉸鏈固定住，因為這是一個多地震的國家） 。The rear door hinges / is hinged at the top so that it opens upwards
後面的門是在頂部鉸接上的，以便可以向上開Soft top, and you ' re gonna love this, suicide doors
軟頂篷，你一定會喜歡這個，后鉸前開車門In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。On the basis of simplified calculation model presented by doctor wangxiaoping, some finite element models are set up. by finite element model program sap93, an analysis of static models of 18m - span and 30m - span w666 acmr in different supporting conditions is made. also a study on the relation between definite support displacement, which reflect variational stiffness of substructure represented by steel column or reinforced concrete column, and load - carrying capacity mechanical performance is made too
本文以w666金屬拱型波紋屋頂為研究對象，沿用王小平博士的簡化計算模型，對18m 、 30m跨波紋拱兩端不同支座形式（鉸支、固支和彈性支座）分別利用有限元計算程序sap93進行計算分析，研究波紋拱在不同跨度，不同支座形式下，不同外荷載作用時對該結構受力性能及穩定承載力的影響，同時分析下部支承鋼柱、鋼筋混凝土柱的剛度變化體現為允許支座位移的大小與結構受力性能及穩定承載力之間的關系。They had a pivot at the bottom and a pivot at the top and that would cause the door to swing open and shut
第一扇門是由希臘人發明的，他們沒有門鉸，在門底下和門頂上都有樞軸讓門在搖動著。Our products including door handle, pull handle, lever handle, door hinge, furniture handle and knob, shower hinge, shower knob and shower bracket, door stopper and door bolt and so on
我們公司主營生產和銷售：拉手門鉸門頂等門窗五金產品。主要產品有：不銹鋼及銅的合頁、拉手、衛浴五金等產品。Theory that the sur - hinge - point is pivotal point provides theoretical basis for the filling to prevent the instability of the basic roof
鉸接結構的上鉸接點是巖層控制的關鍵點，這為現場實施充填以防止基本頂失穩的動力作用，提供了理論依據。In order to study basic roof ' s destruction movement that affects working face in horizontal section top coal caving in mining steep seams, this paper analyses tension of roof using elastic and thin board theory and concludes criterion of roof destruction based on long and narrow thin board
摘要為研究急斜煤層水平分段放頂煤開采過程中基本頂破壞活動對工作面的影響，根據急斜煤層基本頂具有傾斜狹長板的特點，運用彈性薄板理論對基本頂巖層進行了拉應力分析，得出了頂板破斷的判別準則，建立了基本頂初次破斷后形成的「鉸接結構」的力學模型。In order to study the basic roof ' s destruction movement that affects working face in horizontal section top coal caving in mining steep seams, this paper analyses tension of roof using elastic and thin board theory and obtains criterion of roof destruction based on long and narrow thin board
摘要為研究急斜煤層水平分段放頂煤開采過程中基本頂破壞活動對工作面的影響，根據急斜煤層基本頂具有傾斜狹長板的特點，運用彈性薄板理論對基本頂巖層進行了拉應力分析，得出了頂板破斷的判別準則，建立了基本頂初次破斷后形成的「鉸接結構」的力學模型。分享友人