The Spark module provides several classes for working with ASTs.

Spark模块提供了几个使用AST的类。

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The parameters which affect the hold off voltage of the one stage pseudo spark switch such as the working gas, the pressure, the gap distance and the hole diameter of the electrodes have been studied.

对影响单级赝火花开关耐受电压的主要因素，如工作气体、气压、极间隙和孔径等进行了系统的研究。

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The computer-aided spark voltage test system for working electrolyte is established with A/D conversion technology and sampling circuit.

通过取样控制电路，利用A/D转换技术，建立了工作电解液闪火电压的计算机自动测试系统。

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D. program in health policy at Harvard this fall but plans to continue working for Spark.

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Method is working to grow that spark by making its supply chain more scalable.

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He hopes the return of some of the 20, 000 Chinese researchers now working abroad will add a spark of creativity.

ECONOMIST: Chinese biotechnology