石棉

The exploitation of huge areas of virgin forest in both Sichuan and Yunnan provided timber and land for agricultural use but also exposed substantial reserves of crocidolite.

四川省和云南省大面积的原始森林开发不仅提供了木材和农用耕地，还使大量的石棉矿暴露在外。

The biological oxidative ability on DNA of the standard quartziferous dust and crocidolite, which is the carrier of inhaled particles in air pollution, and over ten kinds of metals and those combine and competitive reactions with DNA and chelators have been studied in order to know the role of standard quarziferous dust, crocidolite and metals in the pollution systems.

并对重要的大气污染物可吸入颗粒物的载体石英粉尘和青石棉及其承载的十余种金属离子介导活性氧氧化核酸的作用，金属离子与DNA分子和螯合剂的结合作用与竞争反应，探讨了石英粉尘和金属在污染体系中的作用。

The crocidolite, so dense that the film's researchers noted the soil looked blue, was blown into the faces of farmers and road builders who had mortality rates of more than 30%, according to the narrator.

拍摄影片的研究人员注意到空气中弥漫着厚重的青石棉粉尘，甚至给土壤也披上了一层蓝色的外衣。这些粉尘随风刮到农民以及筑路工人的脸上。

At present comprehensive measu res of prevention and control have shown initial effectiveness in Dayao county. The contamination with crocidolite was prominently controlled and ecological env ironment was improved.

经过10多年的努力，大姚县综合治理已初见成效，青石棉污染得到明显控制，生态环境有了较大的改善。

Part 1: Make of Induced Rats" MPM ModelObjective To study a convenient, practical MPM model which had a high inductionrate can been used for multiple experimental studies and is similar to human"s MPM induced by crocidolite in Da Yao.

本研究目的在于用大姚产青石棉诱发大鼠MPM，提供一种简便、实用，诱发率高，较接近人体MPM，可供进行多种实验研究所用的动物模型。

Because of the fuel-rich propellant's high heat value and combustion temperature, the common stainless steel crucible and oxygen bomb's parts are always burned in the combustion heat testing process. In order to realize the proper testing of combustion heat, some fireproof materials characteristics and their application in the combustion heat testing of fuel-rich propellant were studied. Those fireproof materials include acid washing asbestos, C/C compound materials, Al2O3 chinaware and tungsten crucible.

含金属富燃料推进剂由于热值高、燃温高，在燃烧热测试过程中普通的不锈钢坩埚及附件经常被烧毁，为了正确测试金属富燃料推进剂燃烧热，对酸洗石棉、碳／碳复合材料、Al2O3陶瓷坩埚和金属钨坩埚的基本耐烧蚀特性和在金属富燃料推进剂燃烧热测试中的应用进行了实验研究。

Methods Rabbit pulmonary alveolar macrophages were cultured in vitro. The cell death rate, the malandialdehyde, lactate dehydrogenate and superoxide dismitase contents in the cultured cells were determined at different incubation time and different dose of chrysotile asbestos for the cytotoxicity of the material.

采用体外细胞培养技术，以兔肺泡巨噬细胞死亡率、乳酸脱氢酶、超氧化物歧化酶活力及丙二醛含量变化来表示不同剂量、不同培养时间的纤状蛇纹石石棉对巨噬细胞的毒性。

It is a new type of excellent automobile friction brake material as a replacement of asbestos friction materials

研究表明：此摩擦材料力学性能高，摩擦性能稳定，特别是高温磨损小，噪声低，是一种取代石棉摩擦材料的新型制动材料。

Is specialized in all types of motorcycle clutch with the friction plate, clutch pieces and accessories research, development and production of professional enterprise.

所生产的摩擦片均达到国家标准（GB13826-92B）规定的技术要求，通过了"武汉材料保护研究所"的相关检测，摩擦片采用无石棉材料生产，符合环保政策要求。

In a solemn ceremony in the basement of the Palais Garnier opera house in Paris as a gift from Alfred Clark, the head of Gramophone in France.

鉴于当年为保护唱片所使用的石棉材料有可能对人体造成伤害，在19日的公众见面仪式上不会打开瓮。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。