石的

Methods:The data of 16 cases of gut presimmon concretion causing ileus were retrospectively analyzed.

目的：探讨超声在腹腔镜胃肠柿石切开取石术中的应用价值。

Objective:To study the application value of ultrasonic in laparoscopic gut presimmon concretion lithotomy.

目的：探讨超声在腹腔镜胃肠柿石切开取石术中的应用价值。

In a pelagic chert section at Dachongling of Xiaodong town in the Qinzhou area of southeast Guangxi, we found stratigraphically continuous condont fossils, and divided them into two conodont zones, namely, Jinogondolella granti zone and Clarkina dukouensis zone, in ascending order.

在广西钦州地区小董镇大虫岭深海硅质岩剖面中，首次处理出了层序连续的牙形石化石，并由老至新划分了二个牙形石带，即Jinogondolella granti带和Clarkina ducouensis带。

The crystal structure, wettability and floatability of diaspore and other gangues like kaolite, illite and pyrophyllite were discussed.

分析了我国铝土矿中一水硬铝石和铝硅酸盐脉石矿物的晶体结构与表面性质。

Central South University, Changsha 410083, China）Abstract: The absorption of sodium oleate on the surface of diaspore was investigated under different temperature by IR spectroscopy and XPS.

摘 要：采用红外光谱和光电子能谱检测，研究了不同温度条件下油酸钠在一水硬铝石矿物表面吸附，并分析了温度影响油酸钠捕收一水硬铝石能力的根本原因。

Volcanic rocks contain plenty of mantle-derived xenoliths, including spinel lherzolites with subordinate wehrlite, dunite, olivine websterite, clinopyroxenite and garnet lherzolite , and few olivine, clinopyroxene and spinel xenocrysts.

火山岩中含有的地幔捕虏体类型主要有：尖晶石二辉橄榄岩、石榴石二辉橄榄岩、纯橄岩、异剥橄榄岩和单斜辉石岩；捕虏晶主要有橄榄石、单斜辉石和尖晶石。

Garnet is obviously flatted and stretched, which is very different with that of cold eclogite in Hua Liangting in Taihu county.

石榴子石明显压扁拉长，和高压榴辉岩中等轴自形的石榴子石明显不同。

Finally the spatial distribution figure for electric potential is plotted and analyzed. This method can be used in calculating many similar problems. charged ring ; electric potential ; electric intensity ; elliptic integral

为原点，环轴为z轴，取圆柱坐标系，如图1所示，设尸为环轴外任意一点，下面来求圆环电荷在尸点产生的电位。l「do甲叹r，尹，z夕一二二丁{而一石二竺石万一=，诊L七OJ ql月、—月龟I (1)这个积

Except gold jewelry, enchase the unremitting, ruby, sapphire, and emerald, amber stones and fine texture of pearls, diamond, etc.

除足金首饰外，都镶嵌猫眼石、红宝石、蓝宝石、祖母绿、琥珀石以及质地优良的珍珠、钻石等。

The exoplanet's atmosphere condenses out minerals such as enstatite, corundum, spinel, and wollastonite.

这颗系外行星的大气冷凝后产生矿物，如：顽火辉石、刚玉、尖晶石和硅灰石。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。