sieves造句
Whichthreesieves?"Threesieves?Whichthreesieves?"themanaskedwithpuzzlement.“Normally,ourmemoriesarelikesieves,”hesays.Thetypicalandunconventionalpreparationmethodsofcarbonmolecularsieves(CMS)usedfo...
Whichthreesieves?"Threesieves?Whichthreesieves?"themanaskedwithpuzzlement.“Normally,ourmemoriesarelikesieves,”hesays.Thetypicalandunconventionalpreparationmethodsofcarbonmolecularsieves(CMS)usedfo...