lm是什么意思_lm怎么读_音标

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lm是什么意思

n. 地上移动式无线电设备(Land Mobile);登月舱(Lagrange multipper);光学显微镜

n a unit of luminous flux equal to the amount of pght given out through a sopd angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

lm的用法和例句:

1.He took the passport camera and all the ?lm.

他拿走了相机和所有的胶卷

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