Strictly follow the principle of “four precautions”. That is, Shockproof, Fireproof, heatproof and Oilproof.
Strictly follow the principle of “four precautions”. That is, Shockproof, Fireproof, heatproof and Oilproof.
答：切实做好“四防”：防震、防火、防热、防油。
Strictly follow the principle of “four precautions”. That is, Shockproof, Fireproof, heatproof and Oilproof.
答：切实做好“四防”：防震、防火、防热、防油。