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Subject: by manual or shearer initiation mining. Помогите, пожалуйста! Не могу понять кусок предложения "by manual or shearer initiation"Контекст Automation at progressive levels may be attempted to remove the workman from the face. Roof support units can be controlled individually by push button or in batches of up to 10 units by manual or shearer initiation, obviating valve manipulation. Спасибо! |
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