refractory castables

However, if its mechanism of salt tolerance can be degraded in freshwater or disturbed by alternating irrigation between fresh and salt water, the invasiveness of S.

作为典型的盐沼植物,入侵种互花米草(Spartina alterniflora)具有较强的耐盐性,能否以淡水或淡咸水的轮换浇灌扰乱其耐盐机制,降低其生态入侵性,进而寻求其控制对策是一个重要命题。

Effects of different irrigation water (reclaimed water, wastewater, petroleum-containing wastewater and tap water) used for 90 days on soil enzyme and soil microbial biomass carbon (SMBC) from a long-term wastewater irrigation kaleyard were investigated by indoor simulation method.

采用室内模拟方法,以自来水为对照,研究了再生水、城市综合污水及含油污水短期浇灌对长期污灌区土壤的土壤酶及土壤微生物量碳(SMBC)的影响,探讨了再生水浇灌是否会在一定程度上有利于受污染土壤的肥力和质量的恢复。

Studies of Influence on Burley Tobacco s Root Development and Survival Rate by Different Watering Methods;

浇灌方式对白肋烟根系发育及成活率的影响

The problems in the cast in place beam and plate construction with large span and large area are solved by adopting secondary grouting, side feeding and step flow process.

从力学原理对多层框架结构现浇梁板施工方法及工艺进行了探讨 ,采用混凝土二次浇灌、混凝土侧下料、分段流水作业解决了大跨度、大面积现浇梁板施工中诸多弊端。