The calculation of natural gas flowrate with a programmable calculator can reduce human errors from consulting tables and calculation and its operation is very convenient.
用程序计算器进行天然气流量计算，可减少人为的查表和计算误差，操作也十分简便。
The calculation of natural gas flowrate with a programmable calculator can reduce human errors from consulting tables and calculation and its operation is very convenient.
用程序计算器进行天然气流量计算，可减少人为的查表和计算误差，操作也十分简便。
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