毛主席语录 一个正确的认识,往往需要短过由物质到精神,由精神到物质,即由实践到认识,由认识到实践这样次 的反复,才能豹完成。一、概述 SQ型手扳葫芦是我所自行设计的杠杆式手动牵引起重工具。其优点是结构简单紧凑、壳体封、机体小、重量轻、可随身携带;容易加工;操作方便,安全可靠;使用不受方向、位置和长度限制。对缺乏动力的地区尤为适。以广泛用于林业、采矿、 Chairman Mao’s Quotations A correct understanding often requires Leopard to be completed in a short period of time, from substance to spirit, from spirit to matter, from practice to cognition, from recognition to practice. I. Overview The SQ-type lever hoist is a lever type manual traction lifting tool that I have designed on my own. The advantages thereof are that the structure is simple and compact, the housing is sealed, the body is small, the weight is light, and it can be carried around; it is easy to process; the operation is convenient, safe and reliable; the use is not limited by the direction, position and length. Particularly suitable for areas that lack motivation. It is widely used in forestry, mining,