If the brake linings are soaked with oil or brake fluid, they will not hold well, and excessive pedal pressure is required for braking action.
如果制动衬片被油或制动液浸渍，就会失去作用，必须用力踩踏板才能使制动起作用。
3
Hydroxypropylguar gum and other organic additives are the predominant components of fracturing fluid recovery, which have excessive CODCr, the most important polluting characteristic of the sewage.