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环形加热炉内衬膨胀缝留设技术 被引量:2
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作者 白羽 《山西建筑》 2008年第22期146-147,共2页
针对环形加热炉内衬砌筑的重要性,探讨了内衬膨胀缝的留设数值及原则,详细介绍了膨胀缝的留设方法,提出了膨胀缝留设时的注意事项,以积累内衬膨胀缝留设经验。
关键词 加热炉 膨胀缝 内衬 留设技术
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房建工程项目中施工缝留设技术的应用
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作者 刘丹 李京奇 《门窗》 2014年第4期130-130,共1页
房建工程项目是我国国民经济中的重要组成部分,在我国城镇建设的发展过程中发挥着重要的作用。房建工程项目的施工过程中,会应用到缝留设技术。施工缝主要是指房建工程项目在施工的过程中在各个施工单元的分区间留设的缝,是超过了初凝... 房建工程项目是我国国民经济中的重要组成部分,在我国城镇建设的发展过程中发挥着重要的作用。房建工程项目的施工过程中,会应用到缝留设技术。施工缝主要是指房建工程项目在施工的过程中在各个施工单元的分区间留设的缝,是超过了初凝时间的后浇筑混凝土与先浇筑的混凝土之间形成的一个结合面,在房建工程的项目施工中有着重要的作用。 展开更多
关键词 房建工程项目 施工缝 留设技术
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Comparison of Wheat Planting Methods and Residue Incorporation Under Saline-Sodic Soil
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作者 Muhammad Arshadullah Massomma Hassan Arshad Ali Syed Ishtiaq Hyder 《Journal of Life Sciences》 2011年第12期1042-1045,共4页
The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, P... The present research was conducted to monitor the wheat productivity along with residue incorporation under saline-sodic soils by examining different planting methods at Zaidi Farm, Kakar Gill, Sheikhupura District, Punjab Province in 2007-2008. Randomized Complete Block Design (RCBD) with three replications was used having treatments: control (broadcast), zero till wheat plantation, wheat plantation using happy seeder and wheat plantation on raised beds. It was observed that tillering was pretty higher (141 and 139 m2) under raised bed as well as happy seeder plantation as compared to zero tilled wheat and broadcast technique. A significant relation was detected among maximum straw and grain yield (4,898 and 1,752 kg-ha1) in raised bed followed by happy seeder planting method. The lowest grain yield was recorded in the broadcast method. Maximum net revenue earned by raised bed planting method (39,908 PKR) followed by happy seeder methodology (37,533 PKR). The overall study suggests that raised bed and happy seeder wheat plantation are the superior planting methods. 展开更多
关键词 WHEAT planting methods crop residue saline-sodic.
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