On systematical obstacle to increate peasants ' income 增加农民收入的体制性障碍
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It can be expected that the increate will be hold in the future 预计在未来几年里，我国国际集装箱仍将保持强劲增长势头。
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Some studies on control modes of the system , especially on a dc , pm , brushless and sensor - less motor driven systems . a method of rotor position identification without sensors has been developed . using a microchip to increate system efficiency , anti - disturbing ability and reliability of pwm modulation 研究了适于直流、无刷、永磁、无位置传感器电机转子位置的检测方法；采用单片机实现了该种电机的运行控制，提高了系统在pwm调制时位置检测换相控制过程的抗干扰能力。
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