不能排液
吸、排方向不变
安全阀顶开
原动机过载
第1题:
Ⅰ、Ⅱ、Ⅲ
Ⅱ
Ⅱ、Ⅲ
Ⅲ
第2题:
256mm
2560mm
252mm
1780mm
第3题:
a+b/d
a~c/e
a+b/e
a~c/d
第4题:
双相相移频键控-时分多路复用方式
双相相移频键控-时分多址接续方式
有压扩的调频--单载波方式
A/B/C
第5题:
it can break down under high heat and emit noxious fumes
it will decompose under prolonged storage and lose its effectiveness
fire has been known to flash back over the surface of an oil fire
it is ineffective in fighting fires in high-voltage electrical equipment
第6题:
Relief valves
Check valves
Safety valves
Reducing valve
第7题:
2~5°
3~5°
3~6°
2~6°
第8题:
第9题:
Heat-resistant
Rubber gloves
PVC gloves
Leather gloves
第10题:
locate
look for
watch
look out