为了将空气装入气瓶内,现将一定质量的空气等温压缩,空气可视为理想气体下列图像能正确表示该过程中空气的压强p和体积V关系的是[ ]
A.
B.
C.
D.
答案:B
液压梯上行启动有抖动时,应重新调整(),在上行指令未给出前轿厢即开始上升,是旁通太大,重新调整旁通阀。
汉译英:“产地检验证书;品质检验证书”,正确的翻译为:( )
A.Certificate of origin; Certificate of Fumigation
B.Certificate of fumigation; Certificate of Origin
C.Certificate of quality; Certificate of Origin
D.Certificate of Origin; Certificate of Quality