Such as easy cutting paste, a bit not careful density board they smoke.
譬如容易切割糊，稍不留神密度板就冒烟了。
The tests for the effects of jet position on drag bit cutting process were described.
就射流相对于刀具的四处不同位置对切割效能的影响进行了测试。
The tests for the effects of jet position on drag bit cutting process were described.
就射流相对于刀具的四处不同位置对切割效能的影响进行了测试。
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