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- replacing the main materials 主材更换
- The Nonylphenol was synthesized with phenol and nonene as the main materials. 以苯酚、壬烯为主要原料合成壬基酚。
- The United States, he said, is "not really looking at hybrid technology as replacing the main locomotive. 美国时,他说,是"真的不看,混合动力技术就像更换主要火车头"
- Coal soot is the main material used to produce ink. 这些煤烟子是制造墨汁的主要原料。
- This article analyzes the main cause for such embrittlement deformation and introduces the alternative process by replacing the EP with low molecule polyamide resin(PA). 本文分析了产生脆裂变形的原因,并介绍了改用低分子聚酰胺树脂的工艺技术。
- The research developed a kind of whitening agent with the main materials of zircon, metakaolin, and CeO. 本研究以偏高岭石、锆英石和氧化铈等为主要原料研制增白剂。
- The product is gradually replacing the traditional composite plastic intertexture, it is expected that the product will be the next to the main product packaging industry. 该产品正逐步替代传统的复合塑料编织袋,预计该产品将成为未来重包装行业的主产品。
- By means of calculating the shafting torsional strength, a decision of replacing the main shaft by new one, whose bearing diameter is increased, was made reasonably and duly. 通过对轴系扭振强度计算,科学及时地作出了更换主轴的决定,并适当加大了新主抽抽颈直径。
- A yoghurt was made from milk, black waxy corn juice and Opuntia dillenii haw juice as the main materials. 以牛奶、黑糯玉米浆和仙人掌汁为原料,制成黑糯玉米仙人掌酸奶。
- Silicon core pipe was prepared with HDPE and silicone resis as the main materials. 以HDPE和硅胶母料为主要原料,制备了硅芯管。
- The question of replacing the section director loomed large with the committee. 更换主任的问题摆在委员会的面前,亟待解决。
- The main materials are high quality bausite,fused corundum and high-purity spinel etc. 采用优质高铝矾土、电熔刚玉和高纯尖晶石等做为主要原料。
- In this paper,cotton,polyester and flax were selected as the main materials to develop slub yarn products. 本文选择了棉、涤、麻三种竹节纱作为开发竹节纱产品的主要原材料。
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- The calculator is rapidly replacing the abacus. 计算器正在迅速取代算盘。
- However, the main material used in the EAF is scrap steel. 然而,在电弧炉法中主要的原料是废钢。
- Electricity is the main material for chlorate production. 电是生产氯酸盐的主要原料。
- He is replacing the broken chord of his violin. 他正在更换小提琴上那根断了的弦。
- The main material of the industrial yarn is long-staple cotton. 这些工业用纱的主要原料就是长绒棉。
- The main material of the phosphate fertilizer is apatite. 这种磷肥的主要原料就是磷灰石。