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- Slow penetrating rate of the traditional gas nitriding is an important factor affecting its production cycle . 传统的气体渗氮工艺的渗速慢是影响其生产周期的一个重要因素。
- High mobile and Internet penetration rate. 流动电话及互联网渗透率甚高。
- The penetration rate is getting slower. 钻速变慢了。
- Select the best penetration rate. 选择最佳钻进速度。
- The results show that the catalytic cementation nitrocarburizing below the eutectoid temperature has a rapid penetrating rate and high hardness for the diffusion layer. 化合物层随催渗温度升高而增厚,致密性提高;
- Lots of details of bit rock interaction are revealed and load on bit teeth and penetration rate are obtained. 仿真结果与台架试验结果很接近，从而验证了仿真程序的正确性。
- At that time, China's switchboard capacity only totaled 4 million lines, with the penetrating rate standing at 0.3 percent. Now, the country's switchboard capacity has jumped astonishingly to 180 million lines. 当时，中国全国电话也只不过是400万门左右，每100人只有0.;3部，现在怎么样呢?有1
- Power drill tool and PDC bit are used to ensure wellbore quality and penetration rate; polysulfonate potassium drilling fluid system is used to ensure downhole safety. 应用动力钻具配合高效PDC钻头钻井技术,保证了井身质量和钻井速度;应用聚磺钾盐钻井液体系及相关安全技术措施,保证了井下安全。
- PDC bit have advantages of high penetrate rate,long bit life which saving tripping times so that the application of PDC bit can improve drilling efficiency. PDC钻头具有钻进时间长、机械钻速高、起下钻次数少等特点,使用PDC钻头可大大提高钻井速度。
- A new type of impregnated diamond bit with two sorts of diamond abrasives has been developed, which can improve both penetration rate and service life simultaneously. 研制出一种两级磨料新型孕镶金刚石钻头，该种钻头解决了时效与寿命不能同步提高这一长期困扰钻头研制者的难题。
- Cumulation of permeation amount and penetrating rates and steady fluxs and lag times were obser... 结论:灰关联聚类法可客观地、公正地评价促透剂的促透效果。
- The penetration rate of computers will be raised to exceed 4 percent by 2005. 提高计算机普及率，2005年达到4%25以上。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- She was a bit queer after her husband deserted her. 她遭丈夫遗弃後精神有点失常。
- Field operation shows that, by using the hydrodynamic propulsor, not only the penetration rate is increased, the vibration of the bit and drill stem is reduced as well, thereby the service life of the bit is extended. 1995-1998年井下液力推进器在大港油田等地区不同区块20余口井上施工的实践证明，使用这种推进器不但可以提高机械钻速，而且减轻了钻头和钻杆的振动，进而延长了钻头寿命。
- At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
- Determining drillability of the rocks in a well bore is directly related to the selection of bit type and the forecast of penetration rate,but the existing microdrillability test for studying rock drillability has quite much troubles. 对井剖面地层岩石可钻性的确定直接影响到钻头选型和钻速预测，然而，现有的研究岩石可钻性的微可钻实验存在较多问题。
- I reckon the girl is a little bit boyish. 这想这个女孩有点男孩子气。
- The penetration rates of MPS were between 6 and 50 times of those of heparin. MPS（多磺酸粘多糖）的透皮吸率是肝素的6－50倍。
- Do you think Jack could bite in his secret want? 你以为杰克能忍住不说出他藏在心里的欲望吗？
