Aiming at stress analysis of dip angle fully mechanized top - coal caving support in mining , from the technique of designing and mining , put forward technique measurements : reduce gap of support beam ; increase the inter - frame jack in neighboring support beam 针对大倾角放顶煤支架在开采过程中的受力情况，提出了防止液压支架倾倒的技术措施是：减少支架顶梁间隙；在邻架顶梁间增设调架千斤顶。
Open the trunk , there is a tire jack in there , im sure . " he found the jack in the trunk , got it out and meanwhile , the woman was nervous sitting in the car wondering what he would do to her after it was all over . the young man found the place to put the jack 打开车尾箱，我想那里会有一副起重机，于是他找到了起重机，把它拿出来她坐在车子里，十分害怕，想著之后他会做甚么，他把起重机放好，把车子升起，拿掉轮胎，换上后备轮胎，然后回来，说：谢谢了，女士。
