A four phase reactor-separator is proposed for fermentations characterized by a volatile product and nonvolatile substrate.

设计了一种以挥发性产物和非挥发性底物为特征的四相反应器——分离器。

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The training modules were composed by four phase program. After 5 years of practical application, the system achieved remarkable results.

训练模块由四阶段课程组成。经过5年的实际应用，该体系取得了显著的效果。

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Finally, we developed a four-phase plan as a road map for how financial services companies could adopt an integrated approach to identifying, quantifying, and managing risk.

最后，我们整理出一个四阶段计划，作为指导金融服务公司如何通过采用整合方式来判断，量化及控制风险的导引图。

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For the first time the W.H.O.raised its alert level from phase four to phase five on April twenty-ninth.

VOA: special.2009.05.06

The classical hoplite formation then was not the long lived military institution of scholarly tradition, but merely one phase in a history of almost four centuries of slow change towards ever denser and more cohesive heavy infantry formations."

这种方阵的形成,并不是经过长期传承的传统军事制度,只是步兵阵型演变的一个阶段,战阵逐渐向更加紧密坚固的步兵阵型转化,而这个变化持续了约有四个世纪"

耶鲁公开课 - 古希腊历史简介课程节选

Phase four means that a virus has gained the ability to cause community-level outbreaks.

VOA: special.2009.05.06

However, Riess, an astronomer at Johns Hopkins University, is still counting on observational astronomy to solve the conundrum in a four phase process.

FORBES: Dark Energy Camera Could Reshape Einstein Cosmology

Safety data for KYNAMRO are based on pooled results from four Phase 3, randomized, double-blind, placebo-controlled trials with a total of 390 patients of which 261 patients received weekly subcutaneous injections of 200 mg of KYNAMRO and 129 patients received placebo for a median treatment duration of 25 weeks.

FORBES: FDA Approves Mipomersen For Homozygous Familial Hypercholesterolemia

And then, Phase Four: We will dominate Sunday afternoons, Monday nights, Sunday nights and some Thursday nights of our choosing.

FORBES: Baltimore Ravens Scheduling Snafu Highlights NFL's Arrogance