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- DIAMOND GRAIN BRAZING IN AIR 空气中钎焊金刚石磨粒
- He sucked in air, then went under the water again. 他深深吸了一口气又潜到水里。
- Designed to operate on land, water, or in air. 长于陆海空作战的,三栖的可在陆上、水上或空中操作的
- How much does sound travel faster in water than in air? 声音在水中比在空气中传播快多少?
- The speed of sound in water is about four as great as in air. 声音在水中的速度是空气中的四倍左右
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- She crawled onto the river bank and lay there gulping in air. 她爬上河岸,躺在那里喘着大气。
- The effects of diamond grain sizes on wear resistance ratio of the sintering diamond compacts are investigated. 研究了金刚石的粒度对烧结体磨耗比的影响;
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- The sawing forces, force ratio, average force of single active diamond grain were analyzed. 对锯切力、力比、单颗金刚石承受的平均载荷进行了分析。
- He watched the bombs bursting in air. 他看见炸弹在空中爆炸。
- He sucked in air,then went under the water again. 他深深吸了一口气又潜到水里。
- The oxidizing temperature is350℃,3 hr in air. 过氧化则会使薄膜富氧,同样使结构变化,吸收限变宽而向高能方向移动。
- Rinse filters in air conditioners. 冲洗空调的过滤网。
- Coating metal such as Cu, Ni, Ti, Mo, W or compound coating on diamond grain (DG) surface by coating (chemical, electronic plating) and vacuum plating method (evaporating, sputtering, ionization) was studied. 摘要采用湿法镀(化学镀、电镀)或真空镀(蒸发镀、溅射镀、离子镀)方法,在金刚石表面镀覆一层铜、镍、钛、钼、钨等金属,或者它们的复合镀层。
- Sound travels better in water than in air. 声音在水中比在空气中传播得快。
- Casualties in air crashes are terrible. 空难的人员伤亡很可怕。
- Breathe in air the colour of lavender. 你将淡紫色的空气吸入了体内。
- Sound travels at 1, 100 feet per second in air. 声音在空气中的传播速度为每秒钟1,100英尺。
- Jack was a grease monkey in Air Force. 杰克在空军当过飞机检修工。