本山坑鑿岩机工牟信宽首先響应了鑛長的號召,學習蘇聯的打眼方法,连续創造了新紀錄,在本月二十二號,本山压钎组試做大钎子成功,牟信寬在三十米一號掌子首做试驗,先在掌子中心用大钎子先打一個水平大眼,直徑約九十到一百米粍,大眼深为一·五米,然後用普通钎子圍繞大眼週圍打四個掏心眼,除掏心眼及大眼外,又打七个帮眼,平均深度为一米五十,連大眼前後打眼時間為五 The pit pit drill mechanic Mu Xinkuan first responded to the call of the miners to study the Soviet Union’s method of making eye-catching and continuously created a new record. On the 22nd of this month, One of the first meters of the first palm to do the test, first in the palm center with a large amount of brazier first hit a horizontal big eye, about 90 to 100 meters in diameter, the big eye deep 1.5 meters, and then with ordinary solder Children around the big eyes to play four dig their hearts, in addition to dig their hearts and big eyes, but also play seven help the eyes, the average depth of one meter fifty, even the big eyes before and after the time of five