The ethylene cracking furnace was the core unit, and the thermal cracking process was one of the most important technologies of the ethylene industry.

乙烯裂解炉是乙烯装置的核心设备，而乙烯裂解技术是整个乙烯工业的关键技术之一。

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The experiment result shows that adding polypropylene fiber into concrete can improve its ductility and inhibit its cracking process and ultimately achieve the cracking-control aim.

试验结果表明，在混凝土中掺入聚丙烯纤维可以提高混凝土的韧性，抑制混凝土的开裂过程，从而有效达到防裂的目的。

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Naphtha is the main feedstock for steam cracking process, therefore its property directly influences the yields of main cracking products and the operation cycle of cracking furnace.

石脑油作为蒸汽裂解工艺的主要原料，其性质直接影响裂解主要产品收率和裂解炉操作周期。

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Chemical companies today create hydrogen by cracking methane, a process that results in a tremendous amount of greenhouse gases.

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The company claims that if optical discs written with this process are stored in a location where they are kept from cracking or chipping the data can be read back years later perhaps even 1, 000 years later.

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The Content ID process, in fact, is specifically intended to give copyright holders options other than either ignoring or cracking down hard on uploaders who may be loyal fans as well as infringers.

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