刚玉

Penetration ; concrete ; steelˉfiber concrete ; nubbly corundum c oncrete

侵彻； 普通混凝土；钢纤维混凝土；刚玉块石混凝土

The result indicates; that the antiˉpenetration c apability of the nubbly corundum concrete target is the best. The average penetration depth of nubbly corundum concrete is 46.9% less than that of concrete; the antiˉpenetraˉ tion resistance capability of the steelˉfiber concrete is between t hat of nubbly corundum concrete and concrete.

研究表明，刚玉块石混凝土的抗侵彻性能最优，弹丸平均侵彻深度比普通混凝土减小46.9%，钢纤维混凝土的抗侵彻性能介于上述两者之间

The XRD and microscopic analysis show that periclase is the major phase, spinel is the secondary phase.

X-射线物相分析和镜下显微结构研究表明，SHS补炉料的主晶相为方镁石，次要物相为尖晶石相，还有少量的α-刚玉相和硅酸盐相等。

The dust around PG 2112+059 contains large quantities of rock-forming minerals, including crystalline forms of silica, a form of aluminium oxide called corundum (better known on Earth as the principal ingredient of rubies and sapphires) and a form of magnesium oxide called periclase.

PG 2112+059类星体周围的尘埃含有大量形成岩石的矿物，包括硅晶石，被称作刚玉的铝氧化物（更为通俗易懂的说法是红宝石和蓝宝石的主要成分），以及镁氧化物——方镁石。

The result develops new field for petrological research and provide clues for the prospecting of diamond, topaz, phosphorous and magnesium dep...

它们将成为今后岩石学研究的新领域，同时也是今后寻找金刚石、刚玉、磷、镁等矿产的线索之一。

Rhombohedral ITO solid solution was metastable in air and it would be transformed to cubic ITO solid solution by heat-treatment.

刚玉型结构ITO固溶体在空气中处于亚稳态，并且在加热的条件下可以转变为萤石型结构ITO固溶体。

The transformation from rhombohedral ITO solid solution to cubic ITO solid solution started at 578℃ and ended below 800℃, and it exhibited a weakly endothermic behavior.

刚玉型结构ITO固溶体向萤石型结构ITO固溶体的转变起始于578℃，在800℃以前转变终止并且表现为一种弱吸热行为。

The main point of this paper lies in the research on the microstructure of the mullite—cordierite sagger, which has been used in the production of Jingdezhen ceramic industry in large quantities for many years, by means of a polarization microscope with ultrathin section together with close connection of the process in the sagger manufacture.

本文主要是利用偏光显微镜和超薄光薄片并紧密结合匣钵的制造工艺，对景德镇市多年来一直在陶瓷生产上大量使用的&莫来石—堇青石质匣钵&进行了显微结构的研究，发现这种匣钵材料的主晶相是堇青石，次晶相是刚玉和莫来石，并发现其中各晶相成团聚状分布；另外在磨制超薄光薄片过程中，发觉其结构较疏松。

In order to obtain ideal carbon concentration distribution, new technology of"Attenuating Carburizing"was presented.

采用模拟方法，详细讨论了各种因素对刚玉流动粒子炉渗碳浓度场的影响。

The results showed that the interface of corundum ceramic membrane tube /20﹟ steel enchased compactly and the interface has not gap and pore.

钢进行连接，在常温和700℃下对粘接试样进行了抗拉强度测试，用XRD、SEM等方法对刚玉陶瓷膜管/胶粘剂/金属粘合部分的微组织结构进行了表征。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。