含铅的

In this paper both lead borate sealing glasses and lead free phosphate sealing glasses are studied.

本文研究了含铅的硼酸盐封接玻璃和无铅磷酸盐封接玻璃。

And then the effects of compositions on the mechanical performance, characteristic temperatures, thermal expansion and chemical stability of the glass were discussed. Researches on lead borate sealing glasses show that PbO/B2O3 ratio exerts the most important effect on glass network. ZnO is beneficial to stabilize the glass against devitrification . Bi2O3 has little effects on the sealing temperature, while it helps to adjust the thermal expansion coefficient of lead borate glasses in a definitive range. When 0.5～4 mol% GeO2 is introduced, the glass possesses the highest stability and lowest sealing temperature (400 ?C), which is desirable for low-temperature sealing.

通过对含铅的硼酸盐封接玻璃研究得出，PbO/B2O3比是影响玻璃网络最主要的因素；添加ZnO有助于增强玻璃的稳定性，抑制析晶；Bi2O3对高铅系列配方玻璃的封接温度影响不大，但可使铅硼系列玻璃体系的热膨胀系数在一定范围内可调；在高铅系列配方中，引入0.5～4mol%的GeO2可有效地抑制玻璃析晶，降低封接温度；最终获得了两种性能较好的低熔点铅硼酸盐封接玻璃配方，G3封接温度低达400℃，其PbO含量为54mol%左右，BL10玻璃的封接温度为440℃，但其铅含量大大降低，仅为36mol%。

Lead glass contains typically 18–35 mol % lead oxide, while modern lead crystal, historically also known as flint glass due to the original silica source, contains a minimum of 24% PbO.[2] Lead glass is desirable due to its decorative properties.

中国地质大学珠宝检测中心副主任杨明星："施华洛士奇主要是一个含铅的玻璃，因为让我们看上去五颜面六色，非常的漂亮，它主要就是含一定量的铅，所以它的色彩非常地强，那么它做成各种晶体之后，光线一折射过来，就五颜面六色地非常漂亮。"

The result shows that the content of pigment and filler in coatings, the ratio of epoxy resin to curing agent have important effect on film performance. Comparing with basic silicon lead chromate, the antirust capacity of zinc phosphate is higher, so zinc phosphate is an excellent active pigment at safety and antirust performance.

无毒的磷酸锌与含铅的碱式硅铬酸铅两种活性颜料的防锈性能比较，在本涂料体系中以磷酸锌为活性颜料的涂膜，其防锈性能优于以硅铬酸铅为活性颜料的涂膜。

However, the toxicity of lead oxide and its high vapor pressure during processing has led to a demand for alternative lead-free piezoelectric materials.

然而，铅的毒性以及在加工过程中容易挥发等特点导致需要寻找一种不含铅的压电材料来代替PZT。

But Reiter also discovered that Beethoven's doctor sealed Beethoven's wounds with a lead-laced poultice which, over a few months, would have killed the composer.

但是 Reiter 还发现贝多芬的医生使用了一种含铅的药膏来封住伤口。这种含铅药膏几个月就会要了作曲家的命。

These ceramics have better ferroelectric and piezoelectric performance, good rectangularity in P-E hysteresis loops, better temperature dependence of the properties, and good stability and reproducibility in fabrications.

近年来 ，国际社会正在酝酿立法禁止使用含铅的压电铁电材料。因此，研究开发无铅压电陶瓷是一项迫切的、具有重大社会和经济意义的课题。

Composed as it was with a high percentage of lead salts, white lead has become a beautiful black!

当时作画用上了大量含铅的颜料，但多个世纪以後，本来白色的铅却变成漂亮的黑色了。

Substandard toys will lead, especially in brightly colored plastic products, and some bad bottle system's color patterns also lead, so the best there is no pattern to the baby with the transparent bottle.

不合格的玩具是会含铅的，特别是颜色鲜艳的塑料制品，有的劣制奶瓶上的彩色图案里也含铅，所以最好给宝宝用没有图案的透明奶瓶。

B:硫化铅斑渍中铅的定性分析 Test methods for analysis of lead in PVC taken from insulation and sheath of electric and optical fibre cables - Method A : total lead content determination with flame excitation atomic absorption spectrometry - Method B : qualitative analysis of lead by lead sulphide staining.

NF C32-039-2006 取自电缆和光缆绝缘材料和互套的聚氯乙烯中铅的分析用试验方法。方法A：用火焰激发原子吸收光谱测定法测定含铅总量。

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％。