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In this paper, La-doped TiO_2 photocatalysts were synthesized via an improved hydrothermal synthetic route without calcination step, and were characterized by XRD, UV-Vis, IR and BET. The effect of ratio of water to alcohol, dopant content and reaction temperature on TiO_2 crystalline phase, crystallinity, and photoactivity for degradation of Rh B were discussed in detail.

从制备的角度来说，避免高温煅烧过程来制备小粒径、高比表面积、高结晶度、高光催化活性的二氧化钛，同时使用更加价廉易得的原料，尽可能地简化反应步骤，成为一个很有意义的研究方向。

The membranes were transformed from amorphous phase toα-Al_2O_3 crystalline phase by 5 hours annealing at 800℃and 910℃. At the same time, aluminum and amorphous alumina were found by XRD patterns. The membrane had little change in front side after 5 hours annealing at 800℃, while the back side was transformed from ruleless distributing to cluster distributing.

膜在800℃及910℃下退火5h后，由非晶态的氧化铝转变成为晶态的α-Al_2O_3，但同时也有铝单质和无定形结构的氧化铝存在，膜在800℃下退火5h后的正面没有太大变化，背面由无规则的分布变为簇状分布。

It was found that the addition of silica can effectively inhibit the growth of crystalline size and the phase transformation from anatase to rutile, moreover, promote the generation the Br?

通过以上表征发现，硅的加入可以显著地抑制所制备的催化剂的粒径的生长和晶型的转变，并且可以在催化剂的表面产生Br？

The sandfish lizared, which lives in North Africa and the Arabian peninsula, could also give clues to cheaper ways to cut friction in mechanical and electrical devices than costly silicon carbide or crystalline diamond.

生活在北非和阿拉伯半岛的一种蜥蜴也提供了一些线索，让人类可以通过比碳化硅和金刚石更为便宜的方式，降低机械和电子装置内部的摩擦。

The crystallization sequence of glass also changes. Mg-petalite appears as first major crystalline phase and then transforms into sapphirine.

玻璃析晶初期出现Mg-透辉石相，高的ZrO〓/TiO〓有利于提高Mg-透辉石相的析晶速度。

I didn't know about wild mushrooms being crystalline then, but I did know that after being sautéed they felt like heaven in my mouth.

我在那时候还并不知道野生蘑菇是晶态结构的，但是我知道炒过之后，它们在我嘴里尝起来简直是天堂般美味。

Rifampicin is bright red or dark red crystalline powder, scentless and odourless combined with other anti tuberculosis drugs, in the mean time rifampicin is also a refill of drugs which is drug-resistant to isoniazid or streptomycin.

本品为鲜红色或暗红色结晶性粉末，无臭，无味。利福平为高效广谱抗生素，主要与其他抗结核药合用，用于各种核病重病患者，也可作为对异烟肼和链霉素耐药菌株的替换物。

Found in the contact zone of the shale rock, but also common in crystalline schist.

见于接触带的泥质岩石中，也常见于结晶片岩中。

This paper introduces the characteristics of this kind of landslide movement and investigates the influence of intense rainfall on the activities of crystalline schist landslide by examining rainfall and displacement of four typical landslides.

文章基于对此类滑坡活动观测资料和降雨资料的综合分析，阐述了结晶片岩滑坡的活动特点以及集中降雨对其的影响作用。

A schist is a metamorphic crystalline rock layered and divided along approximately parallel planes.

阿片岩是一种层状变质结晶岩和沿大约平行的平面划分。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。