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- As the principal control system, the IPC accomplishes the device"s control and the whole system"s management, control and supervise. 计算机作为上位控制系统，完成设备的集散控制，负责整个系统的管理、控制和监控。
- The principal controlling factors in reservoir are sedimentation, diagenesis, lithology of mother rock and structure action. 沉积、成岩作用、母岩岩性和构造断裂活动是控制储层物性的主要因素。
- principal control mode function (PCMF) 主控模态函数
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- The principal shareholder ask for a meeting. 主要股东们要求召开会议。
- The agent spoke on behalf of his principal. 代理人代表他的委托人说话。
- Keys are available on application to the principal. 向校长申请就可得到钥匙。
- She's been downgraded (from principal) to deputy. 她已(从校长)降为副校长。
- Our principal problem is lack of time. 我们的主要问题就是缺少时间。
- Industry rarely thrives under government control. 在政府控制之下工业很少会发达。
- His official designation is Financial Controller. 他的职称是财务总监。
- She drank in every word of the principal's lecture. 她全神贯注地听校长演讲的字字句句。
- John informed the principal against Paul. 约翰向校长告发了保罗。
- Those rebellious teenagers are hard to control. 那些反叛的青少年很难管教。
- The central or principal vein of a leaf. 中脉中心的或主要的叶脉
- Pollution control has cleared the air. 污染管制已净化了空气。
- The principal discouraged unexcused absences. 校长不准无故缺课。
- An ASCII control character, end of medium. 一种ASCII码控制字符，媒体结束符。
- Rubber is the country's principal export. 橡胶制品是该国主要的出口产品。
- The firemen were unable to control the blaze. 消防队员无法控制这场大火。
