制作链锯确实无需高深科技，只是用传统的螺丝螺母将塑料手柄和金属链条加以组合。
There is no particularly special technology needed to make a chainsaw. It's really just plastic and metal parts screwed together with old-fashioned nuts and bolts.
他用金属丝把链条的一头缚在钩上。
配用蒸汽引射装置后，可达到一种炉型适应多煤种的目的：与链条炉排比较，具有结构简单，金属耗量少等优点。
With a pilot steam injection device a better fuel adaptability can be achieved. As compared with chain grate stoker, it has the advantages of simple structure and less metal consumption.
输送机械配件：金属输送带网和链条、不锈钢链条、链轮等；
Networks and metal conveyor belt, chain, stainless steel chain, sprocket, etc.
它听起来就像有人拖动非常沉重的东西穿过地板。你可以听到小件金属触及对其它金属。是链条吗？
It sounded as if someone someone was dragging something very heavy across the floor. You could hear the noise of a small pieces a metal hitting against other pieces of metal. Was it a chain?
它听起来就像有人拖动非常沉重的东西穿过地板。你可以听到小件金属触及对其它金属。是链条吗？
It sounded as if someone someone was dragging something very heavy across the floor. You could hear the noise of a small pieces a metal hitting against other pieces of metal. Was it a chain?
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