1.
A Central Drilling Control of EDM System on Blank Tube
管坯冷定心孔电火花加工系统控制研究
2.
When the end face and the axis is not perpendicular within5°, constant face driver can work regularly.
由于使用工件中心孔定位从而提高了产品精度。
3.
Study on Improve Acid Sites and Hydrothermal Stability of Mesoporous Molecular Sieves
强化介孔分子筛酸中心及水热稳定性的研究
4.
Stability analysis of thermal drive in porous media in a centrifugal force field
离心力场下多孔介质中热驱动的稳定性分析
5.
For direct quantitative measurement of porosity, reliance must be placed on formation samples obtained by coring.
孔隙度直接定量测量的可信度取决于取心所得地层的岩样。
6.
FIGURE 3. The eccentric bias system, which uses a contact with a backdrilled plunger, exhibits this typical resistance stability over multiple mating cycles.
图3.偏心系统，使用后钻孔顶针，显示多次配接时的典型电阻稳定性。
7.
The Study on Stabilization of Mast Framework System of 2km. Full Hydraulic Drived Deep Geological Drilling Machine
2000米深孔全液压岩心钻机桅杆结构系统稳定性研究
8.
Ouantitative Estimation of the Relationship between Foramen Ovale-related Parameters and the Hypoplastic Left Heart Syndrome Using Fetal Echocardiography
胎儿超声心动图对卵圆孔相关参数与左心发育不良关系的定量研究
9.
Development of core drill equipment for combined underwater drill rammer of rock built-in pile hole
嵌岩桩孔组合潜孔锤取心钻具的研制
10.
balancing centering machine
平衡-钻中心孔机床
11.
multi-aperture pulse distributor
多孔磁心脉冲分配器
12.
spotfacing and centering machine
平端面钻中心孔机床
13.
concentric orifice with flange taps
法兰取压同心锐孔板
14.
Adapter, male-female. Male-male can be specified.
适配器，插头－插孔。可指定插头或插孔。
15.
Adapter, male-female. Right-click for male-male.
适配器，插头－插孔。右击指定插头－插孔。
16.
directional single-plane jet perforator
单面定向聚能弹射孔器
17.
velocity derived porosity
声速测井确定的孔隙度
18.
When it has been decided where we are going to drill,
当确定钻孔地点后，