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O-rings

来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：综合作业 时间：2024/07/15 05:26:41
O-rings
O-rings
一般指机械用的O型密封圈（多为橡胶材质）
llow self-energizing O-rings 自紧式金属空心O形(型)环
metallic hollow self-energizing O-rings 自紧式金属空心O形(型)环
metallic hollow O-rings of non self-energizing 非自紧式金属空心O形环
O-rings The bell rings.It is twelve o’clock.it is time for lunch.Wha rings and rings figures ear rings The bell rings and rings lord of the rings rings怎么读 five Olympic rings the five olympic rings It rings a bell rings的意思