The excreta not because of weightlessness, but will scatter to the installment outside.排泄物就不会因为失重, 而散落到装置以外....

n.排泄物（如汗、尿、粪等）...

excreta的音标：excreta的英式发音音标为：[ɪk'skri:tə]excreta的美式发音音标为：[ɪk'skritə]...