After repairing, no cracks, no hard points and no clear dividing line exist.
修补后铸件无裂纹、无硬点、无明显分界线。
Due to the asymmetry of explosive chemical material, there are many hard points scattered in its interior.
由于化爆材料的不均匀性，其内部随机分布着硬质点。
On the basis of design process introduction, the door design ideas based on hard points and principal sections are elaborated.
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。
Shield tunnelling through a mix ground has been always one of hard points annoying much the underground engineering community.
复合地层的盾构施工一直是困扰地下工程的难题之一。
Shield tunnelling through a mix ground has been always one of hard points annoying much the underground engineering community.
复合地层的盾构施工一直是困扰地下工程的难题之一。
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