近年来日本建设业生产呈持续不景气状态。制造业为适应两次石油危机冲击和日元增值的影响，在使生产工艺合理化方面积累了经验，使劳动生产率不断提高，在生产自动化方面取得显见的范例，从而使日本产品在世界市场上具有较强的竞争力。建设业虽然在设计标准化、构件工业化生产 In recent years, Japan’s construction industry production has continued to decline. In order to adapt to the impact of the two oil crisis shocks and the appreciation of the yen, the manufacturing industry has accumulated experience in rationalizing the production process, continuously increasing labor productivity, and making visible examples of production automation, thus enabling Japanese products to have a global market share. Stronger competitiveness. Although the construction industry is in the standardization of design, industrial production of components