Fast drilling technology for deep wells in block - 7 in tahe oilfield 塔河油田7號(hào)區(qū)塊深井優(yōu)快鉆井技術(shù)
Fast drilling technology on deep overburden gravel layer in treatment of coal gob area 采空區(qū)治理工程中深覆蓋厚卵礫石層鉆進(jìn)施工
Conclusion : in the craniotomy of the retrosigmoid approach , the lateral two hole should devised lateral and inferior to the asterion and fissure of the occipital - mastoid at the fundus of mastoid . it is a safe and fast drilling method N 、 t擴(kuò)大乙狀竇后經(jīng)內(nèi)耳孔上入路顯微外科解剖學(xué)系列研究中文揚(yáng)要枕乳縫乳突基底外下方為鉆孔點(diǎn)是安全、快速的方法。