孔道直径只有14厘米，要经过14次不同角度的转折。
Pore diameter of only 14 cm, to go through 14 different angles of the turn.
结果表明，在较高入口流速条件下，蓄热体孔道直径对甲苯转化率影响较大。
The results showed that at high inlet velocity, the diameter of regenerator channel had a significant effect on toluene conversion.
它从一个直径只有十几厘米的孔道中来，科莱特试着换了几个位置，都不能一眼望到外面的天空。
It is only from a dozen centimeters in diameter to the pores, Klaette try for a couple of places, cannot be a glancing out of the sky.
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