... lampkin circuit 小型电子管电路 left characteristic 左特性（电子管特性的） low voltage tube 低压电子管 ...
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针对左转车流的交通特性，提出设置左转专用信号灯、禁左和变左转为右转等对策。
Targeting at the traffic feature of left turn traffic, it is suggested to install dedicated signal lights for left turn, left turn restriction or change left turn into turn left, etc.
通过分析左定与右定问题的关系，应用谱曲线和高阶右定问题的谱，研究了一类高阶左定问题谱的特性及谱对给定参数的可微性。
The spectrum of a class of high-order left-definite problems is studied by the relationship between the left-definite and the right-definite problems.
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