| 1. | Test method for leaks using ammonia gas 使用氨气的漏泄试验方法 |
| 2. | His group began working on a device using ammonia gas as the active medium for optics 他的研究小组著手设计一种以氨气作 |
| 3. | Ammonia gas is usually used for freezing , ice making , hardware , molds , stainless steel and thermal treatment , etc 氨气日常常见用于冻房制冷、制冰、五金、模具、不锈钢、热处理等工艺上。 |
| 4. | The material is impermeable to air and fluids and can withstand at least eight hours of exposure to corrosive chlorine and ammonia gas 这种材料不透气亦不渗水,且暴露于具腐蚀性的氯气与氨气下时,至少能耐得住八小时。 |
| 5. | Use of ammonia gas : fertilizer and various ammonia containing compound , various amidogen , acyl and other ammonia containing testing agents ( explosives ) etc 氨气用途:化肥和各种含氨化合物。各种胺基、酰基、硝酸和各种含氨制试剂(炸药)等。 |
| 6. | Fluoroalkyl acetic acids were converted to their corresponding carbonyl chlorides , which was then reacted with o - amino benzaldehyde and ammonia gas to give 3 - ( 1 - iminofluoroalkyl ) - 1h - qunolin - 2 - ones in moderate yields 摘要用2 -氟烷基乙酸为初始原料,用氯化亚砜或五氯化磷将其转化为相应的酰氯,后者在室温与邻胺基苯甲醛缩合,通入氨气回流反应得到3 - ( 1 -亚胺基氟烷基) 1h -喹啉2 -酮类化合物,产率中等。 |