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- Organic polybasic phosphonic acid has little impact on barium sulfate scale and strontium sulfate scale. 有机多元膦酸对硫酸钡、硫酸锶无防垢效果;
- A barium sulfate scale inhibitor FBR was prepared by copolymerization of maleic anhydride, acrylic acid and methyl acrylate. 以顺丁烯二酸酐、丙烯酸和丙烯酸甲酯为原料进行共聚反应,制备了防垢剂FBR。
- barium/strontium sulfates scaling 硫酸钡锶垢
- The results show that: PESA is a good scale inhibitor on barium sulfate scale and strontium sulfate scale.. MA-AA-MAC copolymer is a good inhibitor on calcium carbonate and calcium sulfate. 结果表明:PESA对硫酸钡、硫酸锶垢具有优良的防垢效果;聚MA-AA-MAC对碳酸钙、硫酸钙垢具有优良的防垢效果。
- Most sulfates are soluble in water. 大多数硫酸盐可溶於水。
- The next year the work went ahead on a large scale. 第二年这项工作就大规模进行了。
- The project as being undertaken on a small scale. 这个工程在小规模地进行着。
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- Scale the fish before cooking them. 烧鱼之前先去掉鱼鳞。
- The statue was made to scale, one inch to a foot. 这座塑像是按比例做的,大小是真人的十二份之一。
- Scale inhibitors, composed of maleic anhydride-vinyl acetate-sodium allyl sulfonate copolymers(MAP) and aminocarboxylate chelants (PEPA) were synthesized in the lab to prevent the formation of sulfate scales in oil field water. 室内合成了处理油田水硫酸盐垢的马来酸酐 -醋酸乙烯酯 -烯丙基磺酸钠三元聚合物防垢剂MAP和氨羧溶垢剂PEPA。
- I weighed in at100 pounds on the scale today. 我今天在磅秤上称的体重为100磅。
- barium and strontium sulfate scale 硫酸钡锶垢
- It is hard to imagine the scale of the universe. 很难想像宇宙有多大。
- They are preparing for war on a large scale. 他们正在大规模地备战。
- He learned to scale a rock face from his father. 他从他父亲那儿学得攀登崖面的技巧。
- This map is drawn to a scale of 1 inch to 50 miles. 这幅地图是以一英寸代表五十英里的比例绘制的。
- The powerhouse was trace out accurately later on a large scale map. 后来发电站被精确地描画在大比例地图上。
- Being on a small or greatly reduced scale. 小型的或微小的尺寸很小或尺寸缩得很小的
- A minor key, scale, or interval. 小调音、短音阶或短音程