| 1. | The energy content of the preconcentrate of the example could be increased by the addition of other explosives such as trinitrotoluol .
加入其它炸药，例如三硝基甲苯，可使所列举的预浓缩物的能量增加。 |
| 2. | Ambient air - determination of total non - methane organic compounds - cryogenic preconcentration and direct flame ionization detection method
周围空气.全部无甲烷有机化合物的测定.低温预浓缩和直接火焰电离探测法 |
| 3. | Solid - phase extraction ( spe ) is an effective tool for the preconcentration of trace elements and their separation from various sample constituents
固相萃取对于痕量元素的预浓缩和将元素从各种样品中分离是一种有效的工具。 |
| 4. | Nmoc standard test method for determination of non - methane organic compounds in ambient air using cryogenic preconcentration and direct flame ionization detection method metric
利用低温预浓缩和直接火焰检测法测定周围空气中非甲烷有机化合物 |
| 5. | Microbiology of food and animal feeding stuffs - horizontal methods for the detection and enumeration of enterobacteriaceae - detection and enumeration by mpn technique with pre - enrichment
食品和动物饲料的微生物学.肠杆菌科的检测和计数的水平方法.带预浓缩的mpn技术的检测和计数 |
| 6. | Microbiology of food and animal feeding stuffs - horizontal methods for the detection and enumeration of enterobacteriaceae - part 1 : detection and enumeration by mpn technique with pre - enrichment
食品和动物饲料的微生物学.肠杆菌科检测和计数的水平法.第1部分:通过预浓缩mpn技术进行计数和检测 |
| 7. | Numerous applications of spe to the separation and preconcentration of different elements and their species , including on - line combinations with instrumental determination techniques , are described and tabulated
固相萃取在不同元素及其样品的分离和预浓缩中的很多应用包括用仪器测定在线化合技术，都进行了描述和列表。 |
