Viscurometer
粘度硫化计
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
Nothing so bad, as not to be good for something.
塞翁失马，安知非福。
Oh, I usually walk.
噢，我常走着来。