例句與造句

1. Units for measuring vascular resistance are dyn穝穋m  " 5, pascal seconds per cubic metre ( Pa穝 / m?) or, for ease of deriving it by pressure ( measured in mmHg ) and cardiac output ( measured in l / min ), it can be given in mmHg穖in / l.
2. It's difficult to find pascal second in a sentence. 用pascal second造句挺難的