查询词典 frequencies

Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

The laser diode system is composed of three external cavity diode lasers and four injection diode lasers and a tapered amplifier. Four laser beams as 40K and 87Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three ECDL lasers. Four light beams with the different frequencies are injected into four slave lasers for injection locking, then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

采用三台外腔光栅反馈半导体激光器、四台注入锁定激光器和一台半导体激光放大器组成激光系统，三台外腔光栅反馈半导体激光器通过声光调制器产生四束光，分别作为40K和87Rb原子的冷却光和再抽运光，四束不同频率成份的激光分别注入锁定四台从激光器，然后Rb cooling光、K cooling光和K repump光再同时注入半导体激光放大器进行放大。

The principle here is to resistively load down the OUTPUT of the AMPLIFIER for frequencies in the vicinity at which peaking occurs—thus snubbing down the AMPLIFIER 's gain, then use series capacitance to decrease the loading at lower frequencies.

从频率上看已经超出负载电容的影响范围了，而且，在这个频率下CL的阻抗可能已经大大改变了。

Results Compared with solvent control,toxaphene increased significantly MN frequencies in Hep G2 cells at concentrations of 20,40?μmol/L respectively(P.01,P.01).No significant increase of MN frequencies were found in Hep G2 cells treated with Aroclor1254(23～184?μmol/L) and DDT17.8～60?

结果20，40μmol/L毒杀芬处理Hep G2细胞的微核率与溶剂对照相比显著增加(P.01，P.01)；经Aroclor1254(23~184μmol/L)和滴滴涕(17.8~60μmol/L)处理的Hep G2细胞的微核率与溶剂对照相比，差异无统计学意义。

The calculated free vibration frequencies and mode shapes of the whole structural model compare well with measured values. The influences of the various supporting conditions upon the frequencies of the trashrack and the free vibration characteristics of the single rack bars were then studied.

对栅架整体结构模型的自振频率和振型进行了量测，并与数值计算结果作了对比，二者基本吻合，说明成果是可靠的；此外，还对栅架支承条件对拦污栅自振频率的影响以及单根栅条的自振频率特性进行了探讨。

As they form the level of ionisation gradually builds up, affecting first the lower frequencies, and later higher frequencies as the level of ionisation increases.

当他们形成电离的水平逐渐加强，首先影响更低的频率，和最新更高的频率作为电离增量的水平。

As they form the level of ionisation gradually builds up, affecting first the lower frequencies, and later higher frequencies as the level of ionisation increases.

当它们的电离度开始逐渐增强时，首先影响较低的频率，而更高频率通常显示出电离度的增加。

In this paper, firstly the influence of the delamination upon the natural frequencies of a laminated beam is studied in detail. By partitioning the delaminated beam, its natural frequencies are obtained.

本文首先详细分析了层合梁的脱层现象对其振动频率的影响，通过对脱层梁进行分区处理，得到了脱层梁自振频率变化的规律。

The frequencies of the pacemaker currents from gastric and small intestinal ICC are very similar to the frequencies of rhythmic contraction in murine gastric and small intestinal smooth muscles; ICC network generates higher- amplitude, stabler and more rhythmic pacemaker currents than single ICC does; low concentration of intracellular free calcium is an important factor for generating pacemaker current; calmodulin is involved in the inhibitory regulation of the pacemaker current.

小鼠胃和小肠ICC产生的起搏电流频率与小鼠胃和小肠自律运动的频率非常接近；网络ICC产生的起搏电流比单个ICC稳定、幅度高、频率快； ICC内游离钙浓度的降低是产生起搏电流的重要因素；钙调蛋白在ICC内参与起搏电流的抑制性调节。

F2 of nasalized vowels at tongue root in GZPTH enjoy higher frequencies while those of tongue-tip vowels give lower frequencies due to blurring pronunciation.

相比而言，广州普通话舌根舌尖发音最为含糊，在共振峰频率上表现为舌根鼻音的F2偏高而舌尖鼻音的F2偏低。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。