According to the drillpipe structural characteristics, a dolly appropriate for drillpipe and Kelly detection is designed, of which its probe is adjustable.

根据钻杆的结构特点，设计了探头距离可调的适用于圆钻杆和方钻杆的探测小车。

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In order to probe into the excitation mechanism of thermoacoustic instability in swirl combustors, an experimental setup has been built including an adjustable swirl combustor.

为探索旋流燃烧器内热声不稳定的产生机理，搭建了可调型旋流燃烧器热声不稳定试验台架。

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