lumina background

lumina

/ˈluːmɪnə/

Illustration lumina - Image 1

noun

流明，光通量单位。

In the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.

Examples :

"The LED desk lamp produced 400 lumina, providing ample light for reading. "

这款LED台灯产生400流明的光通量，足够阅读使用了。

physics energy unit science

Illustration lumina - Image 1

noun

管腔，内腔。

The cavity or channel within a tube or tubular organ.

Examples :

"The doctor checked the artery to ensure the lumina was clear and blood could flow easily. "

医生检查了动脉，以确保管腔畅通，血液可以顺畅流动。

anatomy physiology organ part medicine biology

Illustration lumina - Image 1

noun

细胞腔，胞腔。

The cavity bounded by a plant cell wall.

Examples :

"The plant cell's lumina were clearly visible under the microscope. "

在显微镜下，植物细胞的细胞腔清晰可见。

biology plant structure

Illustration lumina - Image 1

noun

管腔，内腔。

The bore of a tube such as a hollow needle or catheter.

Examples :

"The doctor checked the catheter to ensure the lumina was clear before inserting it. "

医生在插入导管前，检查了导管的内腔，确保其畅通。

medicine anatomy