kerildebil2016

13.04.2023 00:30

Английский язык

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1. Сделайте письменный грамматический анализ выделенных скобками слов и словосочетаний.
The engine lathe is (the most commonly) used machine-tool.( It )is used for great variety of metal operations, such as turning, drilling, (screw cutting) and many others. The principal units of the lathe are the bed, the headstock, the tailstock, and the carriage with the apron.
The bed is the base of (any) machine-tool and it (is made) of grey iron casting on which the saddle and the tailstock (slide) along special guideways. The headstock is also located and bolted on the bed.
The headstock contains (the) spindle and the speed gearbox. The spindle is the part of the machine to which power is applied (to rotate) the work. The changing of the spindle speed is effected by levers.
The tailstock consists of (a) casting fitted to the bed. The function of the tailstock is to support one end of the work turned between centres and to mount the tools.