Continuing the contract dealings through fixed quantity, price, scheduled time, and constant quality.

通过固定的数量，价格，预定时间和稳定的质量来延续合同。

youdao

Continuing the contract dealings through fixed quantity, price, scheduled time, and constant quality.

通过固定的数量，价格，预定时间和稳定的质量来延续合同。

youdao