A mechanical model for well bore stability is established based upon mechanical analysis.

By comparing with normal well bore, the economic efficiency of slim hole drilling was evaluated.

通过与常规井眼对比, 评价了小眼井钻井技术经济效益.

The temperature of reservoir decreases approximately in exponential with the distance center of well bore.

油藏温度是井筒径向距离的函数,温度沿径向距离近似地按指数规律衰减.

Mind you I was not born yesterday.

告诉你,我不是小孩子.

He wanted to show his associates that he was not born yesterday.

他向他的同事表示他并不是傻瓜.

He is a poet to the manner born.

他是个天生的诗人.

The man held the child as if to the manner born.

那男子抱着孩子,好似生来就会.

He drove the car as to the manner born.

他驾驶这辆车,好像生来就会开车似的.

Wind-borne soil deposits give this area it's abundance of foliage.

风成土壤沉积使得这个地区植被茂盛.

The nano tribological friction coefficient of boron carbide increases with the normal load rising.

碳化硼材料纳米摩擦因数随载荷的增加而显著增加.

The research set up a base for further preparation and application of boron nitride.

本研究为进一步制备h-BN 粉体材料及其应用奠定了基础.

The excellent properties of Polycrystalline Cubic Boron Nitride ( PCBN ) and its application fields are outlined firstly.

首先介绍了聚晶立方氯化硼 ( PCBN ) 刀具的优异性能及其应用领域.

A new kind of boron nitride based shell mouldinvestment casting of titanium alloy was presented.

介绍一种新型钛合金精密铸造型壳——氮化硼基复合型壳的制备工艺.

The research set a base for further preparation and application of hexagonal boron nitride long fiber.

本研究为进一步制备h-BN 长纤维及其应用奠定了基础.

Alumina-based ceramic tribomaterials containing graphite or boron nitride as solid lubricant were synthesized via-press sintering process.

采用热压烧结工艺制备了氧化铝陶瓷为基体、添加固态润滑组元石墨或氮化硼的陶瓷基摩擦材料.

Such as: synthetic industrial diamond powder and cubic boron nitride ; grinding wheels and cutting discs, etc.

其畅销产品有: 人造工业金刚石,立方氮化硼、聚晶等超硬材料和磨轮、锯片等金刚石工具.

This instrument has been used for measuring the sheet resistance distribution for Boron diffusion chip.

并用该仪器测定了硼扩散片的薄层电阻分布.

Funeral-related economy is a borrowed prosperity.

墓产经济是一种虚假繁荣.

Securities borrowed through the securities lending system of a securities exchange.

自证券交易所借券系统借入之有价证券.

Takeover of a company using borrowed funds.

用贷款收购一家公司.

He borrowed money on his furniture.

他以自己的家具作抵押借钱.