periodic weighting

常見例句

Cantilever beam of key strata breaks and caves into blocks, which is periodic weighting of mining face.
關(guān)鍵層懸臂梁破斷垮落成承壓砌塊，其垮落及沿架后切落，形成工作面周期來(lái)壓。
The fracture of overlying key stratum results in decrease of the roof caving angle and the increase of periodic caving span and weighting intensity.
覆巖關(guān)鍵層的破斷使工作面頂板垮落角減小、周期垮落步距和來(lái)壓強(qiáng)度都增大。
Periodic weighting was analysed by the bearing wedge model, simultaneity, the mechanics of first weighting and periodic weighting were expounded.
利用承壓砌塊模型分析了周期來(lái)壓過程，并給出了初次來(lái)壓和周期來(lái)壓機(jī)理。