使用这种模型对SYR200旋挖钻机桩架进行了整体有限元分析，分析对钻孔机桩架的结构设计有指导意义。
Complete finite element analysis is conducted on pile frame of SYR200 rotary pile drill with the model, which provides guiding reference for the design of pile frames.
这转速调节器电路原理图可以控制你的钻机钻孔机或打孔速度。
This rotative speed regulator circuit schematic allows to control the holing speed of your borer or driller machine.
主tpy - 30型钻机是一种液压浅孔物探普查钻孔机，该机主要适用于土层，沙土层和中硬岩层中的钻进。
TPY-30 drilling machine is a type of shallow-hole drilling machine for exploration, it is suitable for drilling in soil, sand soil and medium harden rock drilling.
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