Oil gives off a gas.

And methane is difficult to capture in small volumes at low concentrations.

而且,沼气在微量、稀薄的情况下不易收集.

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Blake Stone-Banks on an organic agriculture and biogas programme in Yunnan.

布雷克?斯通-班克斯报道云南新的有机农业和沼气革新项目.

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The improvement reaction efficiency is the key to methane's production on industrializationscale. "

提高厌氧消化速度是工业化生产沼气的核心所在.

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And finally, the acids are converted to methane gas.

最后, 有机酸转化为沼气.

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What types of investment products does Biogas Carbon Offset provide?

沼气减排提供什么类型的投资产品?

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Bacteria break down the animal waste to form methane gas.

细菌使动物粪便分解成沼气.

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AC : Whew ! I feel like I just made it through the Underground Railroad. Fried chicken anyone?

哦. 我觉得自己刚做完了地下铁. 有谁要炸鸡?

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The people that started Underground Railroad were amateurs.

铁路地下化(地铁)的开始,源自一群外行人.

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Results: The symptoms such as palpitation, thoraco-depression, shortness breath and pulsation of the external jugular veins occurred during long PR interval while disappeared during short PR interval.

结果：患者表现为长PR间期时出现心悸、胸闷、气促、颈静脉搏动，PR间期恢复正常时症状消失。

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Compared with group A, B and control group, the cases in group C were more significant in disappearance of asthma, dyspnea, wheezing sound, and moist rales and hospitalization days was shorter ( P < 0.05).

喘憋消失、气促缓解、哮鸣音消失、湿口罗音消失及平均住院时间C组与A组、B组、对照组三组比较明显缩短，差异均有统计学意义（P均<0.05）。

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Patients with DKA manifested dyspnea, digestive symptoms and the classic symptoms of diabetes mellitus at onset of AMI, only 29% patients presented with chest pain.

DKA合并AMI发病时以气促、消化道症状和糖尿病典型三多症状多见，伴随胸痛者只有29%；

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In 6~ 9 months following stents implantation, the results of the mean lumen in the stenosis segment, Borg index, FVC, FEV1 and PEF indicate that the long-term effect maintains at a satisfactory level.

在支架植入后6~9个月，分别测定狭窄段气道腔径、气促指数、FVC、FEV1及PEF，显示其疗效依然维持在一个较为理想的状态。

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Results UIP occurred more often in males over 50 years of age. Clinical findings included progressive shortness of breath, cough, sputum and crackles over both lung fields.

结果UIP多见于50岁以上的男性，临床主要表现为活动后气促、咳嗽咳痰、双下肺闻及吸气相爆裂音；

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The main clinical manifestations for recurrent wheezing, dyspnea, chest tightness or coughing.

临床主要表现为反复发作的喘息、咳嗽、气促、胸闷等症状，常在夜间和（或）清晨发作或加剧。

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In both cases can lead to shortness of breath.

以上两种情况均可导致气促。

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Statistical analysis the gender, age, course of cough, course of shortness of breath, symptom score of TCM, BODE, pulmonary function between groups.

对组间性别、年龄、咳嗽病程、气促病程、中医症状计分、BODE指数、肺功能等基本情况进行统计分析。

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Conclusions The clinical features of drug addicts with IE are: fever, inertia, panting, coughing, cardiac souffle, positive of blood germiculture and pulmonary infection. Echocardiogram is important to diagnosing the infection of tricuspid valve.

结论静脉药瘾并发IE者临床特征为发热、咳嗽、气促，心脏杂音，血细菌培养阳性合并肺感染，超声心动图检查对右心感染有重要价值。

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After treatment, the pH value, PaCO 2 and PaCO 2 were significantly improved in experimental group with less short-breath symptom.

治疗后pH、PaO2和PaCO2两组均有统计差异；患者气促症状减轻，临床症状改善。

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Palpitation, Panting and Swallen in Lower Limbs for A Month

心悸、气促、下肢浮肿1月

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Symptoms as shortness of breath, limb weakness, nausea, vomiting, syncope, chest tightness, dizziness, heart palpitations and pericardial effusion were more likely to happen in Type-A AD than Type-B AD, the difference was statistically significant ( P0.05).

A型主动脉夹层与B型相比较，更易出现气促、四肢乏力、恶心呕吐、晕厥、胸闷、头晕、心悸等症状，心包积液也更常见，差异有统计学意义（P0.05）。

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