传播的

Based on the wave equation, this paper describes the underwater acoustic propagation by a wave guide model,and computes the model.

文摘：通过求解波动方程建立了水声在波导中传播的模型并进行了仿真计算。

Based on the wave equation, this paper describes the underwater acoustic propagation by a wave guide model, and computes the model.

通过求解波动方程建立了水声在波导中传播的模型并进行了仿真计算。

Theory of Transmission: Who is to teach?

传播的理论：教育谁？

This prevents, or lessens, the chain of vertical transmission.

这阻断或弱化了垂直传播的链条。

In the entire history of the epidemic there has never been a confirmed case of transmission in that manner.

史上没有以此种方式传播的案例。

Itwas in 2003 that Britain first announced what was thought to be the world's first case of transmission of variant vCJD via transfusion.

是在2003年英国首次宣布发现据称是全世界首例通过输血传播的变异克雅氏病。

The advertising and communication media act as information dissemination tool and the carrier during ancient China.

中国古代广告媒介是古代广告信息传播的工具和载体。

As field represents energy, all these changes spreading out in space, with a definite velocity, produce a wave.

因为场代表能，所以所有这些在空间中以一定速度传播的变化就形成一个波。

I just dont understand why if the risk of HIV in heterosexuals is so low there are so many people infected this way.

我实在不明白为什么假如HIV在异性性交传播的危险那么小，仍然有那么多人通过这个途径感染？

Some regularities of the wave propagation were found from this closed system.

从这个封闭系统中发现了一些瞬态波传播的规律和特点。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。