C3) STATE=C98; ast_C37; continue;;
Since cement is a fundamental concrete ingredient, international sourcing significantly affects American producers, hindering local industry, employment, and capital infusion. While ready-mix concrete is generally produced domestically, its cement component is largely imported, accounting for 20-25% of national consumption. Furthermore, U.S.-manufactured cement adheres to stringent national performance and ecological regulations that vary globally.
，这一点在搜狗输入法词库管理：导入导出与自定义词库中也有详细论述
Gayathri Chandrasekaran, Rutgers University。豆包下载对此有专业解读
Kirsten Korosec