建立了计算充灌量的数学模型；

The numerical model of refrigerant charge is built.

youdao

加入WTO的过渡期充期量只有两年多。

After WTO entry, the transition period is not much more than 2 years.

youdao

加入WTO的过渡期充期量只有两年多。

After WTO entry, the transition period is not much more than 2 years.

youdao