当在内部单位(7)的混凝土变硬时，本产品的制造工序即完成。

When the concrete inside the internal unit (7) gets hard, the production process of the product is completed.

youdao

当在内部单位(7)的混凝土变硬时，本产品的制造工序即完成。

When the concrete inside the internal unit (7) gets hard, the production process of the product is completed.

youdao