它是具有三层玻璃管套合焊接成漏斗式，它的中心管与下管相通，中心管的上端面上有一颗玻璃珠，用来阻止空气流入瓶内。
用自制一氧化碳发生炉提供的还原气氛，在管式炉中仿制了铜红釉试片。
The sample of red copper glaze was imitated in pipe furnace under the reduction atmosphere offered by self-making co reaction furnace.
在竖管炉中用石墨坩埚进行还原试验。
Reduction experiments have been conducted in a vertical tube furnace using graphite crucible.
以毛管逆滤渗系统处理生活污水的实验为例，研究变温下污水土地滤渗系统的氧化还原环境。
The REDOX condition in land infiltration system was studied under different temperatures through the experiment of treating domestic wastewater by reversed capillary filtration system (RCFS).
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