The basic monetary unit of the United States is the dollar. 美国货币基本单位是美元来源安通学校。
The trade-weighted dollar has fallen by 10 per cent after it peaked at a three-year high in March, prompting Mr Geithner to say this week that his basic obligation was to put in place policies that kept confidence in our currency, that we sustain a strong dollar. 美元贸易加权汇率自今年3月创下3年来最高水平后已跌去10%,促使盖特纳上周表示,他的基本职责是实施相关政策,让人们对我们的货币、对我们将维持强势美元保有信心。
It is detailed to introduce the PWM basic principle, constituting of system electric and the choosing of the dollar piece. How to realize the power control and exportation of PWM control system, and the method which PWM is realized through software. 对PWM基本原理,系统电路的组成及元器件的选用,如何实现PWM控制系统的功率控制与输出,及软件实现的方法。
For crystallization process, the internal influence factors are symmetrical characteristic of crystalloid structure, acting force of different basic dollar, and lattice defect, while the external influence factors mainly include reactor structure and operation factors. 影响碳酸钙晶须结晶过程的内部因素包括晶体结构的对称性、结构基元间的作用力、晶格缺陷等,外部因素主要包括反应器的结构因素和操作因素两大类。