The deep gas wells of Qingshen gas field in Daqing are characterized by the great well depth, high bottom temperature, high bottom pressure and gas production with water.

大庆油田庆深气田的深层天然气井具有井深、井底温度高、井底压力大、气水同产等特点，前人的井底静压折算公式不能达到生产所需的精度。

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The result shows that the main reasons are high bottom hole temperature, corrosion of drilling tool during storage and drilling process, high value of formation drillability, and multi-fault.

结果表明，井底温度高、钻具存放及钻井过程中的腐蚀和地层可钻性级值高且断层多，是该地区钻具失效的主要原因。

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The ones that stay in place are probably by chance, and the ones that stay in the bottom are often trapped there by high fees.

那些保持住地位的很可能是偶然的，而那些一直在底位的往往被高昂的费用困在那里。

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So, if we look at the bottom here and the actual plot of the wave function, we see it starts high, very positive, 0 and it goes down 0 and it eventually hits zero, and goes through zero 0 and then becomes negative 0 and then never quite hits zero again, although it approaches zero.

我们看,这下面这是波函数，我们看到它开始很高，是正的，然后降低直到,然后它穿过，变成负的,最后接近,但没达到，在这个。

麻省理工公开课 - 化学原理课程节选

Taq stands for thermos aquaticus, it's a marine micro-organism that lives near these hydrothermal events in the bottom of the sea and they live under very high temperatures and pressures all the time.

aq是"水生栖热菌"的简称,那是一种生活在靠近深海热液活动区的,海底微生物,它们长期生活在高温高压的环境中

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