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Determination of Flavonoids in Mongolian Medicine Ash Selaginella Tamariscina(Beauv.) Spring with Spectrophotometry;

分光光度法测定蒙药卷柏中总黄酮含量

The newly developed cement base anchoring grout material and cartridge type cement base anchoring agent overcome the defects of conventional cement tying materials which are slow in curing and low in early strength.

在高边坡开挖及地下洞室、隧道掘进中 ,用锚杆锚固来提高危岩的稳定性 ,开发研制的新型水泥基锚固灌浆材料及水泥基药卷式锚固剂 ,克服了一般常用的水泥机锚固材料固化慢 ,早期强度较低的缺点 ,使用方便 ,在工程应用中取得了较好的经济效益 ,具有推广应用价

Smooth blasting without damnification is a new technology using thin explosive roll to couduct smooth blasting.

无损光面爆破是采用细药卷进行光面爆破的一项新技术 ,在洪家渡水电站 4号上坝施工支洞和上游导流洞施工支洞中试验获得成功。

It can be concluded that small cartridges of the chemical foaming emu1sion explosive are most applicable to full-face blasting work of rock tunnelling under coal mine pits.

认为化学发泡乳化炸药的小药卷最适用于煤矿井下岩巷掘进的全断面爆破作业。

this paper introduced the selection of main parameters in Roofbolt-net-rope supporting system being implemented as follow and analyzing the result of its supporting performance:(1)diameter of bore hole matching diameter of roofbolt availably;(2)diameter of resin capsule;(3)coupling ratio of roofbolt-net-rope secondly;(4)period of time and volume of roofbolt and rope strengthening secondly.

从以下几点介绍了锚网索支护施工方式,并做了效果分析:(1)锚杆直径与钻孔直径的合理匹配;(2)选择合理的树脂药卷直径;(3)提高锚索二次耦合支护效果;(4)锚杆、锚索二次补强的时间和强度。