难道此处所提的“不可调节的矛盾”不是显而易见的陈述吗？

Isn't the reference to "irreconcilable conflict" simply a statement of the obvious?

youdao

循环水泵可分为拥有叶片角度调节装置的可调叶片式，和叶片不可调节的固定叶片式。

The pump having the Angle adjustable vane is called the variable pitch vane type, and having the non-adjustable vane is called the fixed vane type.

youdao

某些国外电镀电源虽然也实现了程控，但也存在一定的缺陷，如脉宽调节范围较窄，脉冲频率不可调等。

And some foreign power supply units for electroplating also have certain disadvantages, such as limited adjustable range of impulse width, and non-adjustable impulse frequency.

youdao