The investigations of concretes leak-proof, freeze-proof and chemical corrosion-proof have been confirmed that the new alkali-slag concrete has possessed a good merit of durability.

抗渗、抗冻及抗化学侵蚀试验表明，新型碱矿渣混凝土具有优异的耐久性能。

youdao

Via experiment and analysis, the technical specifications of the freeze proof and electrical heating device for plug doors as well as the inspection requirements are put forward.

通过实验分析，提出了塞拉门防冻电热装置的技术条件和检验要求。

youdao

The principles, structure and mode of the freeze proof and electrical heating device for plug doors are described.

介绍了塞拉门防冻电热装置的原理、结构、形式。

youdao

Waterproof, shock-proof and freeze-proof, the PowerShot D20 is built with the active photographer in mind.

ENGADGET: blogger-avatar

It's waterproof to 14 meters (46 feet), shockproof to 2 meters (6.5 feet) and freeze-proof to -10 degrees Celsius (14 degrees Fahrenheit).

ENGADGET