bore resistance造句

• The active underpinning in situ of department store mansion is succeeded as the research prediction . how to improve the stress release method and how to determine the bearing resistance are discussed at the end
  最后作者提出了应力释放法在实际施工过程中的一些不足之处，以及如何准确确定大梁支座反力。
• City construction is identical with applying load on soil mass , so researching maximal area coverage and locus of stress diffusion , transfer and concentration in soil will be helpful of analyzing the deformation and stabilization of city foundation . it also is important content in the research of ultimate bearing resistance of city geologic environment , and it will provide beneficial reference for city disaster reduction , prevention and city sustainable development
  城市建设等同于在城市下伏土体上不断施加荷载，土中应力分布、传递、集聚的最大区域、部位的研究，将有助于分析城市地基变形与稳定问题，是城市地质环境极限承载力研究中的重要内容，可为城市减灾、防灾，城市可持续发展提供有利的依据。
• Pcr products were inserted into pbluescriptsk using psti and xhoi . the element bearing resistance to streptomycin ( sm ) and spectinomycin ( sp ) was excised from php45 and inserted into gene coding region . the disrupted gene was isolated as a pstl and xhol fragment and cloned into prl271
  首先将pcr扩增片段( 1 . 5kb )利用pst和xho插入常规克隆载体pbluescriptsk ，利用基因内部合适的酶切位点插入sp sm抗性片段，再利用pst和xho位点将已插入抗性基因的pcr片段，转入整合载体prl271中获得体外基因中断，最后利用三亲本杂交获得体内突变。