安全性能要求和试验方法: safety property requirements and test methods for automobile fuel tank
开始: 1.(从头起; 着手进行) begin; start; initiate; commence 短语和例子开始生效 take effect; come into effect; 从头开始 start from the very beginning; 开始流行 come into vogue; 开始营业 commence business; 开始收集邮票 set about s