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To avoid loss of drilling tools and even well abandonment due to downhole fire or explosion during air drilling in pay zones, we developed a novel downhole fire or explosion prevention sub, a kind of downhole tool made of low melting-point alloy, designed to shield off oxygen so as to put out fires. This sub is connected to the upper part of dill bit.

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To avoid loss of drilling tools and even well abandonment due to downhole fire or explosion during air drilling in pay zones, we developed a novel downhole fire or explosion prevention sub, a kind of downhole tool made of low meltingpoint alloy, designed to shield off oxygen so as to put out fires. This sub is connected to the upper part of dill bit.

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Recently due to the need to study how to draw five-pointed star, to get out of something and we also look at.

詳細說明：最近因為工作需要天天操天天，研究了一下如何繪制五角星福利免费试看，把弄出來的東西也和大家研究一下。

The speed of produce tin,the time return tin,the interval time of produce tin can be adjusted steady and with tin back adjustable features,which can reduce the waste of welding 3 the mode of produce tin mode: automatic and manual produc tin for the selection of tin (produce tin manually can match a tin foot switch or manual switch out of tin), and the number of the tin can be set 4 all of the settings using DIP switch settings, easy to operate; 5 anti-static design can avoid sensitive electronic components damaged due to static electricity and 6 optional universal bracket solder 7 simple and easy welding to reduce the welding welding achieve the desired effect of waste, improve efficiency significantly.

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Simultaneously, the exports of ionization rate and nonionzed concentration are set up as a powerful tool for studying thoroughly the freeze-out effect. dN〓/dp and dN〓/dn are neglected in the linearized equation system of the iteration methods of Newton and Gummel, due to having lower 15 orders or more than dN〓/dn and dN〓/dp, thus the computing effort is cut down with no effect on precision. A new cut-off technique is adopted to accelerate the convergence speed, about twice reduced for Newton iteration method and six times or so for Gummel iteration method. The approximate formulae of Fermi-Dirac statistics are also put forward with simpler form and higher precision. 3. A term dependent on time is added to the electron and hole current succession equations respectively. It is only this model that conservation of charge in transient analysis and alternating small-signal analysis at low temperature can be kept by. 4. The performance of SE-PISCES is explained by the simulation example of PISCES-2B, diode.

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The worship of Avalokiteshvara spread in Korea due to the popularity and importance of two Buddhist scriptures (the Lotus Sutra and the Flower Garland Sutra ), which set out in detail Avalokiteshvara's compassionate nature.

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