例句與造句

1. Among such objects were the finite size bodies of revolution ( disk, finite cylinder with flat bases, finite cone, finite paraboloid, spherical segment, finite thin wire ).
2. A finite cylinder may be constructed as a manifold by starting with a strip [ 0, 1 ] & times; [ 0, 1 ] and gluing a pair of opposite edges on the boundary by a suitable diffeomorphism.
3. His arguments are ( 1 ) in Newtonian gravity the infinite cylinder solution is a good approximation to finite cylinders; ( 2 ) when the length goes to zero you get the Kerr black hole solution, which everyone believes in.
4. Solutions such as Tipler's assume cylinders of infinite length, which are easier to analyze mathematically, and although Tipler suggested that a finite cylinder might produce closed timelike curves if the rotation rate were fast enough, he did not prove this.
5. It's difficult to find finite cylinder in a sentence. 用finite cylinder造句挺難的