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使用范围：空气洁净屏使用范围及其广泛，在微生物、细菌、病毒容易传播滋生的医院各科室和走廊等;在离心、搅拌、混匀、剧烈震荡等实验操作易产生气溶胶的实验室等;在易受空气中化学污染物腐蚀的文物古籍的图书馆、博物馆、银行等;在粉尘颗粒滋生、异味刺鼻、有害气体密布的工矿工作场所等;几乎只要是有人活动的室内都需要空气洁净屏的保护。

V锥流量计与其它差压式流量仪表原理相同，也是一种节流式差压流量计，都是遵循封闭管道中流体质量守恒（连续性方程）和能量守恒（伯努利方程）定律。

分类及应用1.防水套管按结构形式分为（A、B型）、刚性防水套管（A、B、C型）及刚性防水翼环三种类型。

HQ-51L系列特性与优势：1.无盲区，高精度。

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3、如果进不了电梯，就只能爬楼梯了，这时，就会产生额外的费用，楼层越高，价格越贵。

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在元素与材料的选择上彰显出保险行业特征，并传递出“品质优秀”、“值得信赖”等核心信息，激发更多认同。

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