Away from the fall to 1.2 m height, body bottle does not break down, do not cap off, do not leak. Exposure to high-pressure sterilization.

从离地1.2米高处落下，瓶体不破裂，瓶盖不脱落，不泄漏。敞口可高压灭菌。

youdao

Air drilling is one of the fastest and cheapest drilling methods up to now. It is the most practical technology to penetrate the low - pressure and low -permeability reservoirs and leak - off zones.

空气钻井是目前钻速最快、最经济的欠平衡钻井作业方式之一，是低压低渗漏特别是恶性井漏钻井最实用的技术。

youdao

The calculation shows that, fracturing fluid leak-off considered variable permeability are greater than conventional fractured loss model, when net pressure is higher, the two has 10 times difference.

计算表明：考虑天然裂缝渗透率变化的滤失量要远远大于常规双重介质模型得到的滤失量，当净压力较高时，二者可相差10倍之多。

youdao