夹石

对于煤层内夹石厚度比较大的情况，建议不采用放顶煤开采。

Rock in coal seam , suggest casting away sub-level caving .

传统矿产资源储量估算软件实现中的夹石及采空区快速扣除方法

Stone and Gob Area Deduction in Mineral Resources and Reserves Estimation System

土夹石混合料回填技术应用探讨

Study of Appliance of Soil-Rock Mixture Backfill Technology

用天然沙夹石换土法处理软弱地基实例

Real example of using natural sand with stone to change soil dealing with soft ground

冻土及夹石冻土开挖刀具的试验研究

The Experiment and Research of Ditcher Cutter for Frozen Soil and Frozen Soil with Stone

可见，如何使土夹石填土工程满足经济建设的需要，已是山区基坑边坡工程中迫切需要解决的问题。

How to make the fill to meet the needs of economic construction , is in urgent problems for foundation engineering .

最低可采厚度与夹石剔除厚度是计算工业矿床工业储量的重要工业指标。

The minimum mining thickness and the rock eliminating thickness of ore is important industrial indices that calculating industrial ore base reserve .

研究了含岛屿多边形的三角剖分算法，解决了含有夹石或孔洞的复杂地质体构模问题。

The triangulation algorithm for polygon with island inside was researched here to resolve the modeling problem of complex geological model with stones and holes inside .

进行了水泥砂浆，夹石及混凝土试件温度损伤试验研究，分析了混凝土在升温与降温过程中损伤随温差的变化规律。

The temperature damage experiment about mixture of cements , stones and concrete is carried out for the first time . Principle that the damage changed with the temperature is analyzed .

合理确定计算最低可采厚度与夹石剔除厚度是关系到回采工艺技术、装备水平、矿床埋藏要素、矿岩品位及入选矿石品位。

It is necessary and rationally that calculate the minimum mining thickness and the rock eliminating thickness of ore relates the technology of ore retrieving , the level of equip - ment , the ore base burning source 、 the character of ore product , the character of ore selecting .

结论：采用TURP加电切镜夹取石术同期治疗BPH并发膀胱结石（结石直径〈1.2cm）是安全、高效的。

Conclusions : TURP and extraction with resectoscope for the treatment of BPH and bladder calculi ( < 1.2 cm ) were safe and effective .

半圆铁棒夹楔劈石法圆棒榫截断及倒角机

Plug-and-feather method dowel cutting-to-length and chamfering machine

夹块，夹石绵延的地层中大块的移位岩石夹在其中的页岩层通常是塑性变形。

A large block of displaced rock that is caught along a fault . The shale beds in between generally deform plastically .