Insert the fork about 6in. from the root and simultaneously lever it backwards...将耙子插入到离根部约6英寸的地方并同时向后扳。The device itself was right under the vehicle, almost in line with the gear lever.该装置本身就在车子正下方，几乎与变速杆处于同一直线上。Pity is...
An elevator mechanic can work the machinery directly by turning this lever.电梯修理工可以转动这根杠杆直接操作机器。Press the lever until you hear the catch engage.压下挡杆，直到听到挡挂好。I put the coin in the machine and pulled the lever.我把硬币投入机器，拉动控制...
The fossil fuels (coal and oil) are finite resources.化石燃料（如煤和石油）属于有限资源。Biofuels can be mixed with conventional fuels.生物燃料可以和传统燃料混合使用。The electricity industry consumes large amounts of fossil fuels.电力工业消耗大量的矿物燃料。...
airframe aerodynamics飞机机体空气动力学The tank location for these vehicles is chosen for optimum airframe design for axial loads.这些飞行器上的油箱位置是相对轴向载荷作最佳结构设计来选择的.Since the earliest man - powered flights, airframe design has demande...