以下为句子列表：
英文: Most bottlemakers discovered they did not need the higher alkali glass either for meltability or workability, and many found advantages of lower batch cost and increased productivity from the reduction in alkali.
中文: 大部分制瓶工人发现，他们并不需要更高碱含量的玻璃以方便熔融或加工，很多人通过降低碱含量时发现配料成本降低了，而产量却提高了。
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英文: Selected chemical composition and new technical skill improve the quality of tensile strength, toughness, meltability of the steel.
中文: 严格挑选化学成份，经新技术特别提炼后，能提高钢材本质伸延性、韧性、及溶接性，不容易爆裂。
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