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水力坡降图在输油管道设计中的应用 被引量:1
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作者 文红星 马勇 张江 《石油和化工设备》 CAS 2013年第9期58-60,共3页
水力坡降图借助水力学中比降的原理将输油管道的内压以斜线方式做图,直观表达管线的压力分布状况,对管线设计压力、加压站确定,运行参数分析,起到直观快捷的作用。山区敷设的管线,地势起伏,通过水力坡降图能较快判断线路上存在的翻越点... 水力坡降图借助水力学中比降的原理将输油管道的内压以斜线方式做图,直观表达管线的压力分布状况,对管线设计压力、加压站确定,运行参数分析,起到直观快捷的作用。山区敷设的管线,地势起伏,通过水力坡降图能较快判断线路上存在的翻越点,根据管线的静压状况初步确定管线的设计压力,直观了解管线运行中各点的内压状况。 展开更多
关键词 油管道 水力坡降图 任务输量 翻越点 应用
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Comparing the Effects of Different Post-Listening Output Tasks on Second Language Incidental Vocabulary Acquisition:Revisiting the Involvement Load Hypothesis 被引量:1
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作者 Le CHANG Yumeng DING 《Chinese Journal of Applied Linguistics》 2021年第4期506-519,590,共15页
Based on the Involvement Load Hypothesis, the present study investigated the differential effects of three post-listening output tasks(gap-filling, translation, and sentence-making) on immediate acquisition and retent... Based on the Involvement Load Hypothesis, the present study investigated the differential effects of three post-listening output tasks(gap-filling, translation, and sentence-making) on immediate acquisition and retention of such vocabulary dimensions as productive knowledge of orthography,receptive recall of meaning and form, and productive knowledge of grammatical functions. Ninety second-year English majors were divided into three groups to finish listening plus one of the postlistening tasks. The results showed that the post-listening output tasks had positive effects on immediate acquisition of productive vocabulary knowledge, partially in agreement with the Involvement Load Hypothesis. However, the effects on vocabulary knowledge retention were found to be largely inconsistent with the Involvement Load Hypothesis. The finding thus challenges this hypothesis in that involvement load is not the only determining factor and suggests that the theoretical construct of involvement load should be constructed with more caution. 展开更多
关键词 incidental vocabulary acquisition Involvement Load Hypothesis LISTENING output tasks
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