查询词典 low-class

Now there are two models regarding the massive starformation: infall and accretion model as does the low-mass star formation, andthe collision or merging of low- or intermediate-mass stars model.

对于大质量星形成过程目前主要有两个观点：类似于小质量星形成的吸积方式和由中、小质量原恒星并和形成方式。

Results Three patients presenting hypertension, hypokalemia and sexual infantilism had abnormally high levels of ACTH, low levels of cortisol and sex steroids, low levels of 17-hydroxyprogesterone.

结果 3例患者具有典型的高血压、低血钾和性腺功能低下表现，以先证者临床表现更为突出。

The production of high pump inlet temperature, low pressure, low flow is also one of the reasons why.

3生产中立式离心泵入口温度偏高、压力偏低，也是造成流量低的一个原因。

The differences of providing amino acid to kernel of different winter wheatculfivars.93-52 with high protein content in kernel had highest content of amino acid innutrition organs,indicated 93-52 can provide abundance material for protein synthesis ofkernel,namely the source in full,so the content of amino acid in kernel was highest;Compared Lumai21 with Jinanl7,the amino acid content in leaf of Lumai21 was a littlehigher than Jinan17,but the amino acid content in stem、sheath and spike was obviouslylower than Jinan17,also the amount of amino acid restored in nutrition organs was large,the translocation degree was low to kernel,namely the flow was not fluency,which wasthe main reason of low content of amino acid in kernel.

小麦不同品种向籽粒供应氨基酸水平的差异。籽粒蛋白质含量高的93-52各营养器官中的游离氨基酸含量均最高，说明93-52籽粒蛋白质合成所需底物供应充足，即源足，因而其籽粒游离氨基酸含量最高。鲁麦21和济南17相比，鲁麦21叶片中的游离氨基酸含量虽略高于济南17，但茎鞘和穗中的游离氨基酸含量却明显比济南17低，并且在后期鲁麦21营养器官中游离氨基酸滞留的多，向籽粒中的转移程度低，即流不畅，是造成鲁麦21籽粒游离氨基酸含量低的主要原因之一。

The Electrochemical measurement system used to perform DPSV measurement is constructed with two parts, a low-current measurement system consists of low input bias current operational amplifier and a high resolution SAR ADC and a potentialstat consists of high resolution DAC and high current buffer amplifier.

对于差分脉冲伏安溶出测量，我们使用高精度连续逼近寄存器型ADC和低偏置电流运放构成微电流采样系统；使用高精度DAC和高速大电流缓冲放大器构成了恒电位计，在微控制器的控制下组成电化学测量系统。

High-frequency UPS has an excellent input characteristic, high power density and low cost, so it was popular. But because of the low output impedance, the parallel control is more difficult.

高频UPS 凭借其输入特性好、功率密度高、成本低等优点逐步得到推广应用，但系统输出阻抗低，并联控制较为困难。

With its extremely low input offset current and minimal input voltage burden, it can detect currents as low as 1fA (10-15A).

基于极低的输入偏置电流和输入端压降，静电计能够检测低至1fA（10-15A）的电流。

While the most important characteristics of the electrometer voltmeter operational amplifier are low input offset current and high input impedance, the most important requirement for the nanovoltmeter input preamplifier is low input noise voltage.

静电计电压表使用的运算放大器，最重要的特性是低输入偏置电流和高输入阻抗。纳伏表输入前置放大器的最重要的要求，则是低输入噪声电压。

The signal amplifier should have features like low noise signal, zero drift, high precision, wide frequency band, high input resistance, and low output resistance.

信号放大器应该有特点，例如低噪声信号，零点漂移小，精度高，宽的频带，高输入电阻，低输出电阻。

Direction down the runway with the main category I precision approach instrument landing system, the protection of aircraft in low clouds, low visibility weather conditions, such as the complexity of security movements.

在跑道主降方向设有I类精密进近仪表着陆系统，保障飞机能在低云、低能见度等复杂天气条件下安全起降。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。