secondary reserves meaning in English

二次采油储量
二次可采储量

A study on management model of secondary reserve for ancillary services market
计及可中断负荷影响的阻塞管理定价模型研究
The secondary reserving pores includes structural fissures as well as karren pores and fissures
次生储集空间包括构造缝及溶蚀孔、缝等。
The secondary reserve fund shall be set under the general budget , the amount of which shall be determined according to the financial conditions
二第二预备金于总预算中设定之，其数额视财政情况决定之。
2 . reservoir study shows there have been primary and secondary reserving pores developed in the volcanic rock reservoirs of this area , the secondary pore being dominant
储层研究表明，本区火山岩储层主要发育原生和次生两种储集空间，以次生储集空间为主。