In a word, during using the diathermanous inductor, it must be observed as well as checked.

总之，透热感应器在使用过程中还必须边观察边检查。

youdao

All safety measures must be observed such as persons should not stand under the engine room crane.

切实遵守各项安全措施，像人员不能站立在机舱的天车下。

youdao

All safety measures must be observed, such as persons should not stand under the engine room crane.

切实遵守各项安全措施，像人员不能站立在机舱的天车下。

youdao

Certain rituals and deadlines must be observed for this kind of three-way swap to work.

FORBES: Trading Places

According to the Holy See's constitution, a 15-20 day waiting period must be observed after the papacy becomes vacant.

BBC: Vatican may bring forward conclave for next pope

In order to declare jihad, Fadl writes, certain requirements must be observed.

NEWYORKER: The Rebellion Within