Plain washers-Product grade C 平垫圈
Plain washers-Product grade A 平垫圈
Plain washers-Large series-Product grade C 大垫圈
Plain washers-Large series-Product grade A 大垫圈
Plain washers-Normal series-Product grade A 平垫圈标准系列产品等级A级
low-grade plain concrete pile 低标号素混凝土桩
low-grade plain concrete piles 低标号素混凝土桩
To evaluate the grade of lumbosacral stability, shape analysis was conducted on plain radiographs of the lumbar spine.
目的：评价腰骶关节的稳定性，在腰椎平片上行形态分析。
The karst geological condition, the design and construction, and the settlement observation result of the low-grade plain concrete pile composite foundation for the Longgang Culture Center in Shenzh.
介绍了深圳市龙岗文化中心的岩溶地质条件、复合地基设计和施工情况；沉降观测结果表明，在岩溶地区使用素混凝土桩复合地基技术是可行的。
Never-the-less I use plain Pennzoil multi-grade mineral based 5w-20 in my Ford Expedition.
尽管如此，我为我的福特远征用普通鹏斯多级矿物油5w - 20。
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