The overflow valve is used to protect the machine and the safety of the operating personnel, must not be arbitrary adjustment.

溢流阀是用来保护机器和操作人员的安全的，不得任意调整。

youdao

Flange into fixture in the mould, open switch will be 120 regional automatic welding, according to the size of the flange size to replace fixtures mold, cable length can be arbitrary adjustment.

支线自动焊好，根据法兰的大小规格来更换夹具模具，网线长度可任意调整。

youdao

Special power adjustment swith can achieve arbitrary choice adjustment in the rated power range.

特殊的功率调节开关，实现设备额定功率范围内任意选择调节。

youdao

An arbitrary starting point heck, a whole series of arbitrary starting points have been handed down, anchored into practice with insufficient adjustment, this irrational marketplace enduring in large part because the prices are opaque to most customers who, besides which, are protected from most of the expense because they have insurance.

FORBES: Hospital Pricing and Irrational Thinking