【简答题】齿轮传动与带传动相比主要的优、缺点有哪些?
【单选题】You have an Exchange organization that contains Exchange 2000 Server Service Pack 3 (SP3), Exchange Server 2003 Service Pack 2 (SP2), and Exchange Server 2007 Service Pack 1 (SP1) servers. You need to...
A.
Remove all Exchange Server 2007 SP1 servers from the organization.
B.
Remove all Exchange 2000 Server and all Exchange Server 2003 servers from the organization.
C.
Remove all Exchange 2000 Server servers from the organization,and then upgrade all Exchange server 2007 servers to SP2.
D.
Remove all Exchange Server 2003 servers from the organization,and then upgrade all Exchange server 2007 servers to SP2.
【单选题】You have an Exchange organization that contains Exchange 2000 Server Service Pack 3 (SP3), Exchange Server 2003 Service Pack 2 (SP2), and Exchange Server 2007 Service Pack 1 (SP1) servers. You need to...
A.
Remove all Exchange Server 2007 SP1 servers from the organization.
B.
Remove all Exchange 2000 Server and all Exchange Server 2003 servers from the organization.
C.
Remove all Exchange 2000 Server servers from the organization,and then upgrade all Exchange Server 2007 servers to SP2.
D.
Remove all Exchange Server 2003 servers from the organization,and then upgrade all Exchange Server 2007 servers to SP2.
【简答题】三角带传动是依靠带与带轮之间的磨擦,将主动轴的运动和转矩输给从动轴,其优点优缺点是什么?
【多选题】低负荷开车阶段,缓慢升温的目的是使 ( )
【单选题】钢材的( )用以试验钢材的弯曲变形性能和抗分层性能。
【单选题】You have an Exchange organization that contains Exchange 2000 Server and Exchange Server 2003 Service Pack 2 (SP2) servers. You plan to transition the organization to Exchange Server 2010. You need to...
A.
Install the Active Directory Connector (ADC).
B.
Delete all Recipient Update Service (RUS) objects.
C.
Deploy an Exchange Server 2010 Edge Transport server.
D.
Remove all Exchange 2000 Server servers from the organization.
【判断题】带传动的特点 优点:适用于较大中心距的传动;能缓和载荷冲击——带有良好的弹性 过载时,带在轮面上打滑,起保护作用;运行平稳,无噪音; 结构简单,成本低。 缺点:传动的外廓尺寸较大;传动比不稳定;带的寿命比较短(与齿轮传动相比)