这张专辑真棒，新颖、有趣且富于变化。This is a fabulous album. It's fresh, varied, fun.他的手势富于表现力。He moved his hands expressively.他贫于金钱, 但富于学问.He is poor in money, but rich in knowledge....
A new chalcogenide glass system containing higher content of alkali metal ions was developed.开发了有高含量碱金属离子的新型硫化物玻璃.Using such methods a conductive layer can be formed on the doped chalcogenide layer in situ.利用这种方法,可在该掺杂后的...
型捣固机适用于铸件、混泥土 、 砖呸的捣固.The D type tampers machine is applicable to mix muds, brick and molding pieces.并基于莫尔 - 库仑理论探讨了捣固压实的机理.On the basis of the mohr - coulomb's theory, compacting mechanism of tamping is discussed.D...