求翻译：对不同部位磨损量的测量：首先，采用目测的方法观察链条的磨损情况，当发现有明显的磨损时，用卡尺对各磨损面的尺寸进行测量，磨损严重的更换之。是什么意思？

Measuring the amount of wear of different parts: first, using the visual method of observation chain wear, wear and tear, use calipers to measure the various dimensions of the wear surface of the replacement of badly worn.

The different areas of the worn volume measurement: First of all, a visual observation of the way the chain wear, when you find a significant wear, with a caliper of the worn out the dimensions of the measurement, replacement of worn out.

To different spot wearing capacity survey: First, uses the range estimate the method to observe the chain link the attrition situation, when discovered when has the obvious attrition, carries on the survey with Caliper to various wearing surfaces size, wears serious replacement it.

Measurement of wear in different parts: first of all, using Visual observation on method of chain wear, and when there is obvious when you wear, use calipers to measure the wear surface of size, wearing serious replacement.

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