| 1. | A thin, resistant limestone escarpment is present just basinward . 薄层状的坚硬的石灰岩山崖正好位于靠盆地一侧。 |
| 2. | Analysis on characteristics of reflection seismic pilot detecting technology in thin layered media 薄层状介质中反射地震超前探测的特性分析 |
| 3. | The thin - beded siliceous - rocks include chert and depositional quartz with textures of oolite and pebble 矽质岩包括燧石和沈积石英岩,呈薄层状产出,沈积石英岩具鲕状、砾状结构。 |
| 4. | The upper part is a set of evaporite quasi - tidal sequence with clear cycles which is made up of middle - thin - bedded , gypsum - bearing muddy limestone and dolomicrite 上部为中薄层状富泥的含石膏质夹层的泥质泥晶灰岩、微晶白云岩组成的旋回性清楚的似蒸发潮坪层序。 |
| 5. | The results indicate that good cutting effects can be achieved if reasonable blasting parameters and technical measures is used for blasting thin - layered qinyun - stone ore 试验结果表明,只要采取合理的爆破参数和技术措施,对薄层状矿石同样可以获得良好的切割爆破效果。 |
| 6. | On the basis of analyzing strength and layer - crack damage characteristics of thin - layered qinyun - stone ore , the separate blasting and cutting blasting tests are carried out on it 在分析薄层状青云石矿强度特徵和层裂破坏特性的基础上,对其进行了分离爆破和分割爆破试验。 |
| 7. | For thin - layered qingyun - stone ore , the dense and lower strength bedding faces influence greatly the effect of cutting blasting , so the cutting blasting technology for massive stone cant be used to cut this stone , and its blasting technique needs further experimental studies 摘要对于薄层状青云石矿,密集的、强度较低的层理面严重影响切割爆破效果,不能沿用块状石材的切割爆破方法,因此需要进一步试验研究。 |
| 8. | In order to study the uniqueness and complexity of reflection seismic pilot detecting technology in southern coalfield , and according to the southern coalfield stratigraphic features and characteristics of seismic waves observed , the thin dielectric model both transversely isotropic and anisotropic was set up 摘要南方煤矿薄层状介质存在各向异性和横向各向同性并存的情况,其煤层的物性条件及其赋存情况的几何形态又有利于槽波的形成,且地层地质构造发育,瓦斯、水等灾害严重,这些特征造成了南方煤矿薄层状介质中反射地震超前探测技术的复杂性和特殊性。 |