世界科考潜艇之王蛟龙号随着海水深度增加，水压也在增大，普通人不穿戴护具潜水，一般不能超过水下十几米。否则人体在水体深处全身上下都会被水的压强所包围，导致呼吸和供血障碍，甚至会直接将内脏压破而危及生命。海水压强变化规律为水深每增加10.34米，水压增加 ...

A lightweight, containerized FastAPI email API that sends emails using any SMTP provider. Supports SSL, TLS, HTML content, file attachments, and secure access with an API key.

这款名为“SMPT”的组合式平板车，是世界上最大型的平板车。 SMPT组合式平板车（图源《知识就是力量》） 灵动的冰刀鞋 冰上运动中的冰刀鞋 ...

Films based on pure native starch have limited applications, are easily breakable, very hygroscopic, and permeable to water vapor. One method for improving these properties is to modify starch by ...