毕业论文天下网_卷笔刀的造型设计_包装工程毕业论文格式范文，论文天下网 关键词：卷笔刀；造型设计；瓶盖式；沙漏 [gap=610]Keywords：Pencil sharpener; Modeling design; Cap type; hourglass
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Hourglass Nebula 沙漏星云
hourglass stomach [内科] 葫芦胃
hourglass curve [天] 沙漏线
hourglass worm 球面蜗杆 ; 滴漏形蜗杆 ; 欣德利球面蜗杆 ; 环面蜗杆
The hourglass 沙漏 ; 沙漏人 ; 小时玻璃沙漏 ; 时间沙漏
An Hourglass Worth Of Light 沙漏灯
hourglass cursor 沙漏光标 ; 沙漏游标
N-COUNT An hourglass is a device that was used to measure the passing of an hour. It has two round glass sections linked by a narrow channel, and contains sand which takes an hour to flow from the top section into the lower one. (计时用的)沙漏
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