A silica may be cuted into tapes.Logical formLearned from2 sentences. Silica may be employed.Logical formLearned from2 sentences. (Silica particles) may disperse.Logical formLearned from2 sentences. (Silica aerogels) can be porous.Logical formLearned from2 sentences. (Silica aerogels) may be saturated with (laser dye).Logical formLearned from2 sentences. A silica can be thermal.Logical formLearned from2 sentences. Thin films can be constituted-of-or-filled-with silica.Logical formLearned from2 sentences. A (silica layer) may undergo a formation.Logical formLearned from2 sentences. A (silica gel) can be porous.Logical formLearned from2 sentences. An agency may decide against moving toward a regulation of crystalline silica.Logical formLearned from2 sentences. (Silica gel) may absorb water.Logical formLearned from2 sentences. A material may be composed of silica.Logical formLearned from2 sentences. (Wood fibers) may be replaced by silica.Logical formLearned from2 sentences. Cement may contain silica.Logical formLearned from2 sentences. Silica can be predominant.Logical formLearned from2 sentences.