The control circuit made up of double monostable circuit IC has realized some remarkable functions, such as cycle control, zero crossing trigger, and preventing from repeated and error trigger.

The paper presents to make use of cycle control for features of autocycle on- off control on ac primary feed side and implementing principle circuit.

This paper presents a single-phase cycle control way that two-way Thyristor and its components adjust PWM power control by passing zero trigger,so as to enable the two-way thyristor main circuit to break over different rates of cycle according to the changes in load during the holo-cycle sinusoidal voltage.

Physical properties of Es3~1 reservoir of Youyi Oilfield and their control factors;

Characteristics and control factors of the reservoir space of the Mesozoic clastic reservoirs in Jiyang Depression;

Development characteristics and control factors for reservoir fracture in Chaiwopu anticline of Junggar Basin;

Characteristics and controlling factors of high capacity channels of reservoirs at high water cut stage: A case from Block Hu 12 of Huzhuangji Oilfield;

The Zaoyuan Oil Field,Dagang,Tianjin: Crack-type volcanic reservoirs and their controlling factors;

Study of controlling factors and accumulation condition of oolitic beach gas reservoir in Feixianguan Formation in the east of Sichuan;

Reservoir features and controlling factors of J_1-J_2~2 Members of Fuxingchang in East Sichuan;

Sedimentary characteristics and controlling factors of Cretaceous in Jiyang depression;

An analysis of the characteristic and controlling factors of the Paleogene glutenite fan in the actic area of the Langgu Depression in Bohaiwan Basin,China;