High density conveying of pulverized coal over a long distance through big diameter pipe can be realized by using a newly developed bin pump.
采用新研制的仓式泵实现了大口径管道远距离高浓度输送煤粉。
As far as big diameter pipe gas transport is concerned, gas flow distribution will influence the flow measurement performance, and cause a large measuring error.
对于大管径气体传输来说，气体流场分布情况会影响流量测量的性能，并造成较大的测量误差。
Big diameter pipe can be composed of several round steel brush together, at both ends with wire tightly, within the lumen pull brush back and forth, until the metal color, reoccupy cotton brush clean.
大管径管子可由几个圆钢刷组装在一起，两端用铁丝扎紧，在管腔内来回拉刷，直至露出金属本色，再用棉纱拉刷干净。
Based on the special weldability of big diameter stainless steel pipe complete welding, puts forward the more reasonable welding process and operational method.
大直径不锈钢管的全位置焊接，根据其特殊的焊接性，提出较合理的焊接工艺和操作方法。
This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
论述了大管径供热管道直埋施工，在城市管网改造中的施工方法和质量控制。
This paper expounds the direct embed construction of heat input pipe with big diameter, and its constructing method and quality control in the rebuilding of urban pipe network as well.
论述了大管径供热管道直埋施工，在城市管网改造中的施工方法和质量控制。
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