The essay classifies the complete content of science and technology history in Xijing Zaji as well as analyzes and discusses the account of machinery and physics in the work.

本文将《西京杂记》中科技史的全部内容按照科技史的观点进行了分类，并进一步对有关机械、物理的部分内容进行了分析、探讨。

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You have to fight for human beings to seek the death machinery of the plot to account for the earth to struggle.

你必须为人类对抗死亡机器谋占地球的阴谋而奋斗。

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This paper provides six factors that have to be taken into account when choosing can coiler, for increasing the speed of machinery, improving the product quality and reducing the working intension.

从提高机器速度、 产品质量及降低劳动强度出发，提出了在圈条选择时应考虑的六大因素。

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In fact, Chen Zhengli, Secretary General of the Mining Machinery Branch of the Construction Machinery Industry Association, predicts that the local companies will account for 50% of the excavator market in China within five years.

FORBES: The Battle For China's Construction-Machinery Market

Meanwhile, China is moving up the value chain into high-tech capital goods and is poised to account for about a third of global manufacturing of advanced machinery and equipment within a decade, from about 8% today, Mr. Zhu said.

WSJ: China Is U.S.'s 'Central Challenge,' Summers Says