今年的冬季极寒使美国天然气库存量较5年平均水平下降3%，但交易员充满信心，认为一旦下降季节结束，供应量将重新飙升。
An extreme winter has US gas inventories 3% below the 5-year average, yet traders are confident that supply will come roaring back once the drawdown season ends.
一百五十七页的长度，这本书极惹人喜爱，很容易坐下来一口气读完。
One hundred fifty-seven pages in length, the book is so winsome that it is easy to read in a single sitting.
由于变极同步电机气隙磁场中将存在较大的谐波，这些磁场谐波对电机运行性能将产生一些影响。
In the gap magnetic field of pole changing synchronous machine, there would be large harmonics, which have some effects on the operating performance of the machine.
极靴是电机上的关键零件，其作用是使气隙磁阻减小，改善磁场分布，并使励磁绕组容易固定。
Pole pieces, key parts on electrical motor, reduce the reluctance of the air-gap; improve the static magnetic field distributions and fix the excitation windings.
残气容积（RV）与吸气相中肺野平均肺密度极显著相关（P<0.01），与上、下肺野及全肺则为显著相关（P<0.05）。
RV correlates extremely significantly with the middle lung field on inspiratory HRCT(P<0.01) , significantly with the upper, lower lung field and overall lung(P<0.05).
研制的ZX5一800D电源在进行钨极氩弧焊、手工电弧焊、碳弧气刨及埋弧焊时均获得满意的性能。
The developed welding power source ZX5-800Dshows a satisfactory performance in the welding process of TIG. Shield metal arc, submerged arc and the. carbon arc air gouging.
永磁无刷电机中，平行充磁的2极磁环产生的气隙磁场是正弦分布的。
In a permanent magnet brushless motor, airgap field excited by a 2-pole magnet ring with parallel magnetisation is sinusoidal.
垦东34块馆上段气顶油藏位于胜利油气区极浅海海域，矿场无稳定试井资料。
Guantao gas cap reservoir of KD34 block is located in neritic area of Shengli petroliferous province, and its gas formations can't perform systematic well testing on production platform.
探讨了电机的气隙长度，定子极弧角度、定子轭厚等结构参数对电机转矩特性的影响。
The influences of gap length, polar arc and thick of stator yoke on electromagnetic torque are discussed.
高真空系统残气分析对提高电真空器件的性能、质量和寿命具有重要作用。四极质谱计与微机联用是必然的趋势。
The application of the residual gases analysis in high vacuum system is very important for improving the performances, the quality and the working life of various vacuum electronic devices.
在无补偿直流牵引电动机中，通常采用主极极弧为圆弧的扩张气隙来改善换向器电位特性。
The opening air-gaps with circular main pole arc are usually used to improve the potential curve of commutator on non-compensable d. c. traction motors.
关于钢焊丝熔化极气电焊时从颗粒状过渡突然转变为射流过渡的机构，至今存在分歧的观点。
There is disagreement on the mechanism of the abrupt transition from globular to streaming mode of metal transfer in steel wire MIG welding.
碳黑：在缺乏空气的情况下，燃烧天然气或油产生的一种细面极黑的颜料。
Carbon black: a fine, intensely black pigment obtained by burning natural gas or oil with restricted air supply.
研制的ZX5一800D电源在进行钨极氩弧焊、手工电弧焊、碳弧气刨及埋弧焊时均获得满意的性能。
The developed welding power source ZX5-800Dshows a satisfactory performance in the welding process of TIG. Shield metal arc, submerged arc and the. carbon arc …
采用与泄露容器半径相匹配的极靴进行堵漏，能保证了极靴与泄漏容器间的气隙控制在预定范围内。
The pole terminal matching with the radius of a leakage container is utilized to stop the leak, and a gap between the pole terminal and the leakage container is controlled in a preset range.
气相色谱-三重串联四极杆质谱法；凝胶渗透色谱；腐霉利；食用油；
Gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS); Gel permeation chromatography(GPC); Procymidone; Edible vegetable oils;
研制的ZX5一800D电源在进行钨极氩弧焊、手工电弧焊、碳弧气刨及埋弧焊时均获得满意的性能。
The developed welding power source ZX5-800Dshows a satisfactory performance in the welding process of TIG. Shield metal arc, submerged arc and the…
研制的ZX5一800D电源在进行钨极氩弧焊、手工电弧焊、碳弧气刨及埋弧焊时均获得满意的性能。
The developed welding power source ZX5-800Dshows a satisfactory performance in the welding process of TIG. Shield metal arc, submerged arc and the…
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