我厂在开展以五好为目标的比学赶帮运动中,厂党委提出了打硬仗、练硬功的号召。采石车间积极响应了党委的号召,成立了有车间领导、老工人、技术人员参加的练功委员会,本着先易后难、急用先练的原则,制订了各个工种的练功计划。在爆破方面,由于目前的二次爆破量(放小炮)比较大,炸药消耗较多,爆破的飞石严重威胁着人身安全,因此决定先从二次爆破练起。在讨论练二次爆破的功夫应达到什么样的 I plant to carry out the five good as the goal than to learn to help sports, plant party made a call to fight hard, practicing hard work. The quarry has responded positively to the call of the party committee and set up a practicing committee with workshop leaders, veterans and technicians. In accordance with the principle of getting rid of difficulties first and urgently, the practice plan of each type of work was formulated. In the area of ​​blasting, since the current amount of secondary blasting (small artillery) is relatively large and explosives are consumed more, blasting rockets pose a serious threat to personal safety. Therefore, they decided to start with the second blasting. In discussing the practice of secondary blasting should reach what kind of