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In order to raise drilling speed of the non saline dome wells in Kenkiyak Oilfield, the relationship between rake angles of the cutter, profile of the bit, which have effect on cutting depth and impact-resistant of PDC bit cutters, and cutting efficiency is studied respectively using finite element analysis according to rock properties of the research area. The structure of the PDC bit is then optimized by using the research result.

为提高肯吉亚克油田非盐丘井钻井速度，根据地层岩石力学参数评价结果，利用有限元方法对影响PDC钻头攻击性和抗冲击性的齿前角、冠部形状等结构参数与破岩效果之间的关系进行了研究，并对PDC钻头的结构进行了优化设计。

According to a known work frequency, the medium thickness and its dielectric constant, the micro-band line width, the sizes of the substrate, the quadrant metallic plate and high resistant surface gap are computed preliminarily then to determine its final sizes by optimizing and emulating utilizing the emulation software of HFSS8.0 edition.

根据已知的工作频率、介质厚度及其介电常数初步计算出微带线宽度、介质基片大小、正方形金属贴片尺寸以及高阻表面间距；利用电磁场HFSS8.0版的仿真软件优化仿真确定最后尺寸。有望应用于双星定位收/发集成天线及相应工作频率的电路中。

Which is used to construct the resistant midge DH population of wheat, in the greenhouse in the experiment of 5 groups of Resistance, susceptible wheat midge hybrid in order to induce the formation of the wheat haploid.

本研究为创建小麦抗吸浆虫DH群体，在温室条件下对5个小麦抗、感吸浆虫杂交组合进行了单倍体诱导试验。

The Company QG chromium carbide hardfacing composite plate, using welding or brazing with metals produced by automatic arc welding alloy powder to add new process methods, the formation of hypereutectic high chromium multi-element alloys superhard wear-resistant layer, can significantly improve easy to wear pieces of equipment and steel production life.

本公司QG碳化铬耐磨堆焊复合钢板，采用焊丝或焊带产生的金属电弧添加粉末合金自动堆焊新工艺方法，形成过共晶高铬多元素合金系超硬耐磨层，可大幅提高易磨损设备及钢板制作件的使用寿命。

This study used the tide gauge system that will try to Zhongshan Station Swan Ridge offshore ice chisel holes in the seabed installation of new automatic tide gauge sensors, and connect low-temperature-resistant, anti-high extrusion dedicated data cable to the Zhongshan Station GPS satellites observation room.

本次考察采用的验潮系统，将尝试在中山站天鹅岭近海凿冰开孔，在海底安装新的自动验潮传感器，并连接耐低温、抗高挤压的专用数据电缆至中山站GPS卫星观测室。

Using a drum Cr18Ni9Ti furnace tank made of stainless steel cylinder, or a Cr-Mn nitrogen heat-resistant steel castings, by the end of the furnace body, bearing bearing supports, and with a motor-reducer for use furnace tank to the slow rotation, with drum parts Rotation of the tank furnace heated evenly, and the workpiece between each other without coverage phenomenon, the same color after heat treatment furnace can feed the other end to the mouth from two roller bearing.

滚筒炉罐采用1Cr18Ni9Ti不锈钢制成圆柱型，或采用铬锰氮耐热钢铸件，一端由轴承支座在炉体外支承，并采用电动机带减速机进行传用，使炉罐缓慢旋转，工件随滚筒炉罐旋转使之受热均匀，并且工件互相之间无复盖现象，热处理后色泽一致，炉罐另一端为进料口，由二只滚轮支承。

A new method of using relative resistant index to reflect the ability of horizontal resistance to stripe rust was put forward.

研究了水平抗锈性，提出了用相对抗病性指数反应水平抗病性强度的新方法。

To understand the relationships between the activities of superoxide dismutases, catalase, peroxidase and resistance of melon to gummy stem blight, dynamic changes of activities of SOD, CAT and POD in resistant accession PI 196477 and susceptible accession Lvbaoshi were analyzed after inoculation by Didymella bryoniae.

为了明确甜瓜蔓枯病抗性与SOD、CAT和POD活性变化的关系，采用甜瓜蔓枯病菌孢子悬浮液对抗病材料PI 196477和感病材料绿宝石进行接种，并于接种后测定叶片内SOD、CAT和POD的活性变化。

Resistant starch from extrudate containing guar gum showed higher swelling and solubility. This was attributed to frictional forces created by the gum, which contributed to the loosening of granular structure.

含有瓜尔豆胶的挤出物中的抗性淀粉具有较高的溶胀性和溶解性，这可归因于胶产生的摩擦作用及其导致的颗粒结构的松散。

It is waterproof hence proving that it is weather resistant and it can be clipped right next to the wheel as spring mechanism is added to hold the rack firmly.

后备箱采用防水材料制作，能够应对各种天气变化。它可以紧贴着后轮放置，因为添加的弹簧装置使其牢牢地固定在了后架上。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。