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Among the substances in third-hand smoke are hydrogen cyanide, used in chemical weapons; butane, which is used in lighter fluid; toluene, found in paint thinners; arsenic; lead; carbon monoxide; and even polonium-210, the highly radioactive carcinogen that was used to murder former Russian spy Alexander V.

三手烟中的物资包括用于制造化学武器的氢氰化物，轻质石油的丁烷，涂料稀释剂中的甲苯，砷，铅，一氧化碳，甚至还有谋杀了前苏联间谍亚历山大利维尼柯的极具放射性致癌物资钋210，三手烟中11种组成物质都是高致癌物资。

Spiral nail was used to fixed fracture of neck of femur in 35 patients,multi screw posts were used in 20 patients,pressor slideng goose neck nails were used in 5 patine...

结果 经过平均 2 3个月的随访，优良率：粗隆间骨折 63 。3 %；股骨颈骨折内固定组 5 3 。9%，假体置换组 85 。7%。

142 Chapter 1 The History and Future of Computers 3.1.6 Complements Today, the radix -1 complement is not used by itself; it is used as a step for finding the radix complement. The radix complement is used to represent negative numbers in modern computer systems.

如今，反码已不单独使用，而作为求补码的一个步骤使用，如今，反码已不单独使用，而作为求补码的一个步骤使用，补码是当代计算机系统表示负数的方法(反码用于早期的计算补码是当代计算机系统表示负数的方法反码用于早期的计算技术中)。

23 Chapter 3 Number Systems and Boolean Algebra 3.1.6 Complements Today, the radix -1 complement is not used by itself; it is used as a step for finding the radix complement. The radix complement is used to represent negative numbers in modern computer systems.

如今，反码已不单独使用，而作为求补码的一个步骤使用，如今，反码已不单独使用，而作为求补码的一个步骤使用，补码是当代计算机系统表示负数的方法(反码用于早期的计算补码是当代计算机系统表示负数的方法反码用于早期的计算技术中)。

The former is used to design the software and hardware of slave station interface in this paper ,SPC3 is used as ASIC and P89C669 is used as MCU .

本课题采用第一种方案进行从站接口的软硬件设计，其中ASIC采用SPC3，MCU采用P89C669。

"It has valence 2 or 4 in compounds, including stannous chloride (used in tin galvanizing and manufacturing polymers and dyes), stannous oxide (used to make tin salt s for chemical reagents and plating), stannous fluoride (used as an anticavity ingredient in toothpastes), stannic chloride (a stabilizer for perfumes and a source of other tin salt s), and stannic oxide (a catalyst and a polishing powder for steel)."

在化合物中的原子价为2和4。化合物包括氯化亚锡(用于电镀锡以及制造聚合物和染料)、氧化亚锡(制备化学试剂和电镀用的锡盐)、氟化亚锡、氯化锡(香水的稳定剂以及其它锡盐的原料)以及氧化锡(催化剂以及钢材的拋光粉)。

"It has valence 2 or 4 in compounds, including stannous chloride (used in tin galvanizing and manufacturing polymers and dyes), stannous oxide (used to make tin salts for chemical reagents and plating), stannous fluoride (used as an anticavity ingredient in toothpastes), stannic chloride (a stabilizer for perfumes and a source of other tin salts), and stannic oxide (a catalyst and a polishing powder for steel)."

在化合物中的原子价为2和4。化合物包括氯化亚锡(用于电镀锡以及制造聚合物和染料)、氧化亚锡(制备化学试剂和电镀用的锡盐)、氟化亚锡、氯化锡(香水的稳定剂以及其它锡盐的原料)以及氧化锡(催化剂以及钢材的拋光粉)。

"It has valence 2 or 4 in compounds, including stannous chloride (used in tin galvanizing and manufacturing polymers and dyes), stannous oxide (used to make tin salts for chemical reagents and plating), stannous fluoride (used as an anticavity ingredient in toothpastes), stannic chloride (a stabilizer for perfumes and a source of other tin salts), and stannic oxide (a catalyst and a polish ing powder for steel)."

在化合物中的原子价为2和4。化合物包括氯化亚锡(用于电镀锡以及制造聚合物和染料)、氧化亚锡(制备化学试剂和电镀用的锡盐)、氟化亚锡、氯化锡(香水的稳定剂以及其它锡盐的原料)以及氧化锡(催化剂以及钢材的拋光粉)。

"It has valence 2 or 4 in compounds, including stannous chloride (used in tin galvanizing and manufacturing polymers and dyes), stannous oxide (used to make tin salts for chemical reagent s and plating), stannous fluoride (used as an anticavity ingredient in toothpastes), stannic chloride (a stabilizer for perfumes and a source of other tin salts), and stannic oxide (a catalyst and a polishing powder for steel)."

在化合物中的原子价为2和4。化合物包括氯化亚锡(用于电镀锡以及制造聚合物和染料)、氧化亚锡(制备化学试剂和电镀用的锡盐)、氟化亚锡、氯化锡(香水的稳定剂以及其它锡盐的原料)以及氧化锡(催化剂以及钢材的拋光粉)。

"It has valence 2 or 4 in compounds, including stannous chloride (used in tin galvanizing and manufacturing polymers and dyes), stannous oxide (used to make tin salts for chemical reagents and pla tin g), stannous fluoride (used as an anticavity ingredient in toothpastes), stannic chloride (a stabilizer for perfumes and a source of other tin salts), and stannic oxide (a catalyst and a polishing powder for steel)."

在化合物中的原子价为2和4。化合物包括氯化亚锡(用于电镀锡以及制造聚合物和染料)、氧化亚锡(制备化学试剂和电镀用的锡盐)、氟化亚锡、氯化锡(香水的稳定剂以及其它锡盐的原料)以及氧化锡(催化剂以及钢材的拋光粉)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。