The result shows that the length of the sampling pipe inserted into the vent-pipe and the vent-pipe's airproof are the key factors for the correct exhaust emissions results.
研究分析表明：尾气采样探头伸入排气尾管的长度及取样点前的测量管路密封性是保证测量结果正确性的主要因素。
The angulation and length of the inserted screw were also measured and evaluated.
置入的螺钉角度和长度亦测量并评估。
The spiral bands are basically equal in length to a condenser heat-exchange straight pipe and are inserted in the condenser straight pipe.
螺旋纽带与凝汽器换热直管道基本等长并插装在凝汽器直管道内。
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