求翻译：造成这种现象的结果，主要是使混凝土结构大大降低了结构的严密性，其疏松的结构强度几乎降低到最低点，在使用过程中其承受能力极大地减少，并且容易遭受腐蚀而造成重大的损伤，严重地降低了工程的承载力和耐用性。造成这种现象的原因大体有以下几点：是什么意思？

Result of this phenomenon is mainly the concrete structure greatly reduces the tightness of the structure, the structural strength of its loose almost reduced to the lowest point, in the course of its greatly reduced capacity, and susceptible to corrosion caused by significant damage, severely reduc

This phenomenon, the result is to make concrete structure significantly reduces the structure of the rigor of osteoporosis, its structural strength almost reduced to the lowest level, during the course of their use greatly reduce their ability to endure, and is prone to corrosion and causing signifi

Creates this kind of phenomenon the result, mainly was causes the concrete structure to reduce the structure hermeticness greatly, its loose structural strength reduced the perigee nearly, its bearing capacity reduced enormously in the use process, and easy to suffer the corrosion to create the sign

Cause this phenomenon results, mainly the concrete structure greatly reduce the structural rigour, its loose structure strength almost reduced to lowest point, reduced its capacity significantly during use and and vulnerable to corrosion caused major damage seriously reduce the engineering capacity

This might be caused by the results of major is to greatly reduce the tightness of structure of concrete structures, its loose structure strength almost reduced to the lowest point, in the process of using its capacity significantly reduced, and susceptible to corrosion and causing significant damag