Another quality of line that's more difficult to achieve is variation in the softness and hardness.

线的另一性质更加难以企及，那便是软硬的变化。

youdao

NMU has also peculiar quality , for example the glutinous variation appears in the later generation of Zaoxian 26.

NMU诱变也具有特异性，例如在早籼26后代中出现了糯性变异株系。

youdao

It is certain significance to assess the impact of water environment on railway tunnel, provide control measures of construction from the point of the variation of water quality.

分析和评价铁路隧道对水环境的影响，从而从水环境质量变化角度提出工程控制措施，对实际工程具有一定的指导意义。

youdao

However, it says some of the variation could be due to differences in the quality of the data submitted by hospitals.

BBC: Maternity care varies across England

Juran focused more on the human-relations aspects of quality, while Deming's approach involved demonstrating that all business processes are vulnerable to a loss of quality through statistical variation.

ECONOMIST: Guru