求翻译：检验的时机和批次：每个品种在开机生产正常后立即进行热后尺寸变化率的检验；正常生产中每个品种每班至少进行一次热后尺寸变化率的检验。是什么意思？

The timing and the batch of test: each species immediately after the boot normal production inspection of the thermal dimensional change; normal production of each species in each class at least the size of the rate of change in a hot test.

Verify the time and Batch: each species in the normal production immediately after the size of the rate of change in normal production testing; each species per class for a time at least after the hot size rate of change of the test.

Examination opportunity and raid: Each variety normal carries on the heat immediately after the starting production the size rate of change examination; In after the regular production each variety each class carries on a time heat at least the size rate of change examination.

Timing of the testing and batch: each variety in a normal power production immediately after the size change rate after heat test; each variety in class at least once during normal production thermal size change rate after inspection.