正确的：Without twisting a yarn with a summary ： solvable problem ： can use a heavy load of finely partners, and from the upper surface of a displacement to the surface of a coarse and heavy veil drawn, the increase of the solution is a load of finely ： was fixed in casting an elastic body washers (12) and twisting and yarn of () between 1, every four) (cover the two rolls of () a thick veil has no direction of the ground, with 1) (loads have to jack-hammer an elastic body washer (12) reduce a thick veil of a finely () and no
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