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To explore the mechanisms of lead-induced apoptosis, PC 12 cells were exposed to 100 μmol·L-1 lead acetate for 24 h, and cellular morphology, cytoskeleton and ultrastructure were observed.

为了从形态学角度研究铅诱导细胞凋亡的机制，用100 μmol·L-1乙酸铅对PC12细胞进行染毒24 h，检测细胞整体形态、细胞骨架和细胞超微结构的改变。

As Paul Robbins reports in "Lawn People"(2007), the first pesticide popularly spread on lawns was lead arsenate, which tended to leave behind both lead and arsenic contamination.

如同保罗·罗宾斯在《草地人》（2007）中的报道，第一种广泛喷洒的杀虫剂砷酸铅会导致砷和铅的残留污染。

"Lead chromate, PbCrO, a yellow pigment often combined with lead sulfate, PbSO, for lighter hues."

铬黄铬酸铅，PbCrO，一种通常与硫酸铅化合的黄色染料，PbSO，用于浅色颜料。

"Lead chromate, PbCrO, a yellow pigment often combined with lead sulfate, PbSO, for lighter hue s."

铬黄铬酸铅，PbCrO，一种通常与硫酸铅化合的黄色染料，PbSO，用于浅色颜料。

As dyestuff for coloring and painting, they are easily and economically collected because of high consumption. Before Tang Dynasty arsenic disulfide had been more expensive than lead chromate so that lead chromate had been often used as paint.

用作涂绘的颜料，因消耗量比较大，大多容易采集且价格便宜，唐以前雄黄较石黄昂贵稀少，故用以充当涂料的多为石黄。

The antimony in the lead alloy inhibits significantly the nucleation and growth of lead dioxide crystals.

合金中的锑能使二氧化铅晶核形成和生长速率显著降低。

A kind of lead-dioxide electrode was prepared by plating lead dioxide on the surface of kryptol.

其中二氧化铅电极是通过在碳棒上电镀而成的。

In addition, many small businesses there is no perfect environmental protection facilities, high levels of lead smelting process steam, lead dust, sulfur dioxide and other harmful substances into the atmosphere, not only the job-site labor conditions also cause serious environmental pollution.

此外，许多小型企业没有完善环保设施，铅冶炼过程中的蒸汽高，到大气中铅尘，二氧化硫和其他有害物质，不仅是施工现场劳动条件，同样会造成严重的环境污染。

Lead glass is a variety of glass in which lead replaces the calcium content of typical potash glasses .

杨教授说，施华洛世奇饰品不仅是用玻璃做的，而且还是一种含铅的玻璃。

Researchers believe that this part of the male long-term high concentration of nitric oxide, a sulfur dioxide, carbon monoxide and lead the work environment, motor vehicle exhaust, and nitric oxide, lead, most likely to damage sperm quality.

研究人员认为，这部分男性长期在高浓度的一氧化氮、一氧化硫、一氧化碳和铅等汽车废气环境中工作，而一氧化氮、铅等，最容易破坏精子质量。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48