This paper explores the implementation of the gatekeeper unit in the H. 323 system, and develops an embeded OS-based gatekeeper module.

文章对H.323系统中的网守单元的实现进行了探索，并设计出基于嵌入式系统的网守程序模块。

youdao

The oil and gas segment explores for, develops, and produces crude oil, natural gas, and related products.

石油和天然气领域探讨了，开发和生产原油，天然气，以及相关产品。

youdao

The company offers deepwater and harsh environment drilling, oil and gas drilling management, and drilling engineering and project management services, as well as explores, develops, and produces oil and gas resources.

FORBES: Strong Buys Among Oil Stocks