查询词典 optional
- 与 optional 相关的网络例句 [注：此内容来源于网络，仅供参考]
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He wants to make SAT scores an optional part of the application for all 90,000 kids who want to go to U.C.
他希望能将SAT 作为每年想要进入加州大学的90，000名学生申请资格的一个可选项目。
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This article analyzed characteristics and development trend of FCC gasoline in China, introduced the characters and plant effects of OCT-M and FRS FCC gasoline selective hydrodesulfurization process, especially the commercial application effect of the production of States Ⅲ and Ⅳ regulation gasoline. The commercial test results showed that OCT-M and FRS process were mature and credible, and had the characteristics of low pressure, low investment, convenient operation, low H2 consumption and high liquid yield. OCT-M and FRS process could offer refineries optional economical and flexible measure to produce States Ⅲ and Ⅳ regulation clean gasoline.
分析了我国FCC汽油的特点及发展趋势，介绍了OCT-M和FRS FCC汽油选择性加氢脱硫技术特点及中试效果，着重介绍了OCT-M和FRS FCC汽油选择性加氢脱硫技术生产国Ⅲ、国Ⅳ汽油的的工业应用效果，标定结果标明，OCT-M和FRS技术成熟可靠，具有装置压力等级低、投资省、操作方便、氢耗低、汽油产品收率高等特点，是我国炼厂生产国Ⅲ、国Ⅳ清洁汽油时可供选择的经济、灵活的解决方案。
- 推荐网络例句
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If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!
如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！
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China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.
中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。
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Well, Jerry would rattle off all the details of that movie.
那么，杰瑞会急促背诵那部电影所有细节。