The immune system "walls off" the TB bacilli which, protected by a thick waxy coat, can lie dormant for years.
免疫系统会把结核杆菌“屏蔽”起来，结核杆菌在厚厚的腊质胞壁的保护下可潜伏多年。
2
Coat the exhaust system with ceramic without the catalytic converter OR let it rust out and replace the whole dang thang with stainless steel pipe sections.
大衣与不带催化转化器或陶瓷让它锈出来更换整个党的不锈钢管段胜排气系统。
3
The abrasive subsidiary ratio, paint subsidiary system and applicating method of base coat treatment before painting are specifically introduced.