A relatively small volume of specially prepared fluid placed or circulated in the wellbore.
置于井筒中或在井筒中循环的用量相对较小的特别配制的流体。
The statements and explanations of OV products made by Distributor shall be confined to those contained in publications issued or circulated by Organic Vision.
直销商对机汇产品的陈述和说明,仅可依据本公司正式发行或公告的刊物或文件内容。
An influenza pandemic is caused by a virus that is either entirely new or has not circulated recently and widely in the human population. This creates an almost universal vulnerability to infection.
流感大流行由全新的一种流感病毒或最近未在人群中广泛流行的一种流感病毒引起,几乎无人对其有免疫力。
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