뭐하는거야

뭐하는거야

結果 (繁體中文) 1:

我在做

結果 (繁體中文) 2:

你在做什麼

結果 (繁體中文) 3:

Inthisprocess extruded through the polymer melt is an annular die to a rising continuous tube cooled by which is an air ring and is simultaneously axially stretched and circumferentially ring and is simultaneously axiall stretched and circumferentially inflated by the take up - force，f，and the internal bubble pressure，respectively，until the freezeline height，L，is reached（see Fig 1）。Consequently，with the help of thecollapsing nip frames and roll the film solidified bubble is changed shape from the bubble to alay - flat tube of film。The obtained biaxilly oriented polymer film has mechanical，physical，and optical properties（e。g。tensile strength，tear resistance heat塗膠，characteristic禁烟，transparency）that are used in daily products，such as carrierbags，wrapping foils，garbage，medical films or as electrolytic membranes（where polylefines，ps，pvc respresents typical pa blowing poylmers film）