negative well bore pressure筒: a section of thick bamboo负压: negative pressure; subatmosp ...负压: [物理学] negative pressure; subatmospheric pressure卷筒负载: drum load负压；真空: negative pressure下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:筒负压，即可在微信中查询翻译
