“TFDS动态检查”的检查范围和预报质量标准规定：铁路货车（）装置各杠杆、拉杆、推杆及圆销、开口销无折断丢失，吊架、托架无脱落。
参考答案：基础制动
What does a SART signal sound or look like?（）
A.It transmits "SOS" and the vessel's name and position in slow speed Morse Code
B.It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's position
C.It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's position
D.None of the above
轧机刚性越好，辊跳值就越大。
