通过对设计过程的介绍，阐述了基于设计硬点和主断面的车门设计思路。
On the basis of design process introduction, the door design ideas based on hard points and principal sections are elaborated.
产品是无机材料，主晶相是硬硅钙石，理化性能稳定。
The MFDJ calcium silicate boards are inorganic materials, the main crystal phase is the xonotlite, with excellent physical and chemical properties.
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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