| 1. | Blow air from your diaphragm out through your lips
从胸膈膜处发气吹向唇部。 |
| 2. | Bubble aluminium powder
发气铝粉 |
| 3. | A simple gas evolution test apparatus can be easily self - made , and it works quite satisfactorily
简易形式的发气量测定仪可以方便地自行组装，并且具有良好的使用效果。 |
| 4. | Many economic and social benefits are derived using bio - energy charcoal residue to scrub co2 from exhaust streams
利用生物能源的木炭残留物从排发气流中来除去二氧化碳会产生很多的经济和社会益处。 |
| 5. | The gas evolution test method has the advantage that the effective coal dust content in green sand can be determined rapidly and accurately
摘要发气量试验方法的优点是能够迅速和准确地确定型砂中有效煤粉的具体含量。 |
| 6. | Effects of the content of fiber , vesicant , pore ratio and pore diameter were investigated , the results indicates the variables have great effects on the sound absorbing performance of the samples
实验发现，孔隙率、平均孔径大小、玻璃纤维含量、发气剂含量对材料吸声性能有显著影响。 |
| 7. | The study on salc includes : 1 ) the study on the harmonization between aeration rate and melts thickly rate ; 2 ) the study and application of the new multi - function composite additive ( nmca ) ; 3 ) the study on the durability of salc ; 4 ) the designation of the structure of new multi - functional unbearing compound wall and fast equipment mold , etc . the results show : the additive can improve the harmonization of the workability and mechanics characteristic of salc to a certain extent ; improve the volume stability of salc under different environment by enhancing the resistance to the freeze and thaw , dry and wet circle and drying shrinkage
在salc的研究方面，主要包括发气速度和稠化速度的协调性研究、新型多功能复合外加剂的研制、耐久性能的研究以及新型多功能非承重复合墙体结构及其浇注成型的快速组装模具设计等内容；结果表明：科学合理的引入辅助外加剂在一定程度上使salc材料的工作性及相应物理力学性能得以最佳匹配，增强了salc材料对冻融循环、干湿循环及干燥收缩的抵抗能力，使salc在不同的环境下均具有较好的体积稳定性。 |
| 8. | Abstract : it is an important task to cure pollution and take environment protection . based on the amount of test data and statistical information ， accroding to the theoretical calculation ， gas evolution ， dust powder ， chemical contamination and solid waste which producing in the foundry producting are analyzed . technical measure and cure method of alleviating the pollution is put forword
文摘:治理污染、进行环境保护是1项重要任务；以大量的实测数据和统计资料为依据，通过理论计算，对铸造生产中产生的发气、粉尘、化学污染物、固体废弃物进行了逐项分析；有针对性的提出了减少污染的工艺措施及治理方法。 |
| 9. | The research work about durability of high - performance self - compacting micro - expansive concrete show that the micro - expansive function and micro - bubble producing function of mineral admixture h can improve the impermeability , frost - resistance ability and sulfate eroding resistance ability etc of self - compacting concrete
研究了免振捣微膨胀高性能混凝土的各项耐久性能，结果表明：山于新型矿物添加剂h的微膨胀功能和微量发气功能，研制成功的免振捣微膨胀高性能混凝土具有优良的抗渗性、抗冻性、抗硫酸盐侵蚀等耐久性能。 |
