the deflection of the end a of the cantilevered beam is ( ). e = 200 gpa and i = 70.0(10^6) mm4.
高放废物处置库选址在没有裂隙、断层、地震、火山活动和地下水流过的地质体中。
if the moment is applied about some arbitary axis, then the moment must be resolved into components along each of ( ) , and the stress at a point is determined by ( ) of the stress caused by each of the moment components.
the solid circular shaft is subjected to an internal torque of . the shear stress developed at points a and b are ( ) and ( ), respectively.
iso 18000-x不包含13.56mhz的空间接口参数。
目前全世界公开宣称拥有核潜艇的有()
下列哪种元素不是以命名的()。
目前世界共有10个拥有22艘航母,其中,共有11艘,且均为核动力航母。
下列不属于辐射防护三原则的是()。
although the choice of a sign convention for a beam is ( ), we will use the one often used in engineering practice. the positive directions are as follows: the distributed load acts ( ) on the beam; the internal shear force causes a ( ) rotation of the beam segment on which it acts; and the internal moment causes ( ) in the top fibers of the segments.
antitheis a rhetorical device in whihc two similar ideas are put together. ( )
操作系统是计算机系统中的( )。
下列各组软件中,完全属于应用软件的一组是( )。
paralelli and repetition are the ways to create rhythm in the speech. ( )
those great orators successfully employed the power of spoken word to change the course of history. choose the greater orators in history from the following four choices. ( )