玻璃环也叫生物环或细菌屋,是最经济高效的滤材,一般由滑石粉烧制而成,多孔,表面积大,适合大量硝化菌居住。
钕玻璃环状激光器 Nd-glss ring laser ; neodymium-glass ring laser ; glass ring laser
玻璃环氧树脂 Glass Epoxy
由玻璃环氧树胶 Glass Epoxy
及玻璃环 frit ring
玻璃环氧片 glass epoxy plate
玻璃环氧分层印刷电路 glass epoxy laminate printed circuit
环氧玻璃环 epoxy glass ring
环氧玻璃基板 epoxy glass substrate ; epoxyglasssubstrate
环氧玻璃 [材] epoxy glass ; glass-epoxy
程由玻璃环氧树脂 Glbutt Epoxy
产品描述玻璃环用一种简单的方法来预测怀孕的周期。
Product DescriptionCycleBeads are an easy way to use a natural family planning method.
玻璃环对于怀孕周期的检测育方法,准确性已经超过了95%。
CycleBeads are based on a natural family planning method that is more than 95% effective when used correctly.
厚玻璃由坚固的烙环作撑脚。
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