Pneumatic-electric emergency valve has pneumatic emergencyfunction and Electric emergencyfunction, which can simplify DK—1 brake system and reduce trouble.
气电两用紧急阀具有气动紧急和电动紧急功能，可将DK— 1制动系统简化，减少故障发生。
2
Emergency is when obviously you have issues where you are losing coolant with a possible loss of coolant, possible loss of function.
紧急的就是当你们明显地遇到问题，就是你们损失了冷却剂，还有可能，损失冷却剂，可能损失功能。
3
In addition to providing an audit trail of each vehicle and employee, the SOS-03 has bi-direction phone conversation capability and emergency help call function.