wavelengh

wavelengh的基本解释

n.

波长

与wavelengh相关的网络例句 [注：此内容来源于网络，仅供参考]

Amounts of the glycyrrhizic acid were determined by ultraviolet spectrophotometry at 252 nm wavelengh. Result The best extraction conditions from decoct method were that amount of affusion wate was 200 mL, extract 2 times, boiling time was 5 min, crash time was 20 s.

利用正交试验4因素3水平选择最佳提取条件(包括加水量、提取次数、煮沸时间、粉碎时间、溶剂量、振荡时间、氨水浓度)，用紫外分光光度法在252 nm波长处测定甘草酸含量。

One, the physical quantity that the fundamental point that the physical quantity that describes mechanical vibration and mechanical wave is proposition of the university entrance exam describes physical quantity of simple harmonic motion to the; such as amplitude, periodic, frequency, speed, acceleration, phasic, phasic difference describes mechanical wave has amplitude, wavelengh, velocity of wave, periodic, frequency to wait.

一、描述机械振动和机械波的物理量是高考命题的基础点描述简谐运动物理量有振幅、周期、频率、速度、加速度、相位、相位差等；描述机械波的物理量有振幅、波长、波速、周期、频率等。

Be in from the ground in the atmosphere advection layer of 50 kilometers of 15 ～, centered the ozone gas of on the earth 90%, although its chroma never exceeds 1/100000, all concentration rises to also have a even thinner than sole only, but it assimilated opposite substance effectively harmful, wavelengh is less than the UV-C of sun ultraviolet ray of 295nm, and opposite content hurtless, wavelengh is more than the UV-A of sun ultraviolet ray of 320nm to make them all pass however, opposite content has certain harm, wavelengh is in the UV-B of sun ultraviolet ray of 295 ～ 320nm also is absorbed for the most part.

在离地面15～50公里的大气平流层中，集中了地球上90%的臭氧气体，虽然其浓度从未超过十万分之一，全部集中起来也只有比鞋底还要薄的一层，但它却有效地吸收了对生物有害的，波长小于295nm 的太阳紫外线 UV-C，而对生物无害的，波长大于320nm 的太阳紫外线 UV-A 却让它们全部通过，对生物有一定危害，波长在295～320nm 的太阳紫外线 UV-B 大部分也被吸收。