查询词典 test tube

Methods: Mesityl oxide in the air was sampled by active carbon tube and desorbed by the solvent of carbon disulfide which included 1% methanol, then separated by FFAP capillary column, and finally detected by hydrogen flame detector. The experimental study was conducted according to the requirements of Regulation of studies on the determination of toxicants in the air of workplace.

工作场所空气用活性炭管采集，经1%甲醇的二硫化碳溶液解吸，FFAP毛细色谱柱分离，氢火焰离子化检测器检测，按照《工作场所空气中有毒物质检测方法研制规范》的要求进行方法研究。

Results: The good linear range of method was 10 to 1000μg/ml (T=0.9999) with the correlation coeffivient of 0.9999, and the limit concentration in air was 0.2 mg/m^3 with the average relative standard deviation less than 5%(n=6). The average sampling rate ranged from 96.6 to 100%, and the breakthrough capacity of l00mg activated charcoal was 4.7mg. The average desorption rate was 97.6%, and mesityl oxide absorped in activated charcoal tube was stable for 7 days and can be detected accurately with other gas coexisting in the air of workplace.

结果：异亚丙基丙酮浓度在10~1000μg/ml内呈良好线性关系，相关系数0.9999，最低检出浓度为0.2mg/立方公尺，相对标准偏差＜5%(n=6)；气体采样效率≥96.6%，100mg活性炭对异亚丙基丙酮的穿透容量为4.7mg，平均解吸效率97.6%；活性炭样品室温下可保存7天；丙酮、丁酮、异佛尔酮、苯、甲苯、二甲苯等共存物不干扰测定。

Methods: Mesityl oxide in the air was sampled by active carbon tube and desorbed by the solvent of carbon disulfide which included 1% methanol, then separated by HP-5 capillary column,and finally detected by mass detector.

工作场所空气用活性炭管采集，经1%甲醇的二硫化碳溶液解吸，HP-5毛细色谱柱分离，气质联用仪检测。

According to the features of MF tube-bending technology and the principle of radiation ...

根据中频弯管工艺的特点和辐射的原理，提出了适于这一特殊情况的比 4。

The LD II front-end (1K2) tubes were also microphonic adding to the perception of low quality compared to high end tube amps using easy to roll ubiquitous, but more expensive tubes.

小不点II前排胆管(1K2)存在麦克风效应，质量不够精良，不如其他价格更贵的胆管容易更换。

When the pollen tube comes into the micropyle and contact one of the synergids, both synergids do not show any sign of degeneration.

在二细胞原胚的顶细胞和基细胞中，均可观察到与合子中形态相似的双亲质体和线粒体。

Porogamy The usual method of fertilization in angiosperms in which the pollen tube enters the ovule by the micropyle.

珠孔受精：被子植物通常的受精方式。花粉管通过珠孔进入胚珠。

A pollen tube growing through the micropyle and interspace of the nucellus epidermis releases two sperms into one synergid.

花粉管经珠孔及珠心表皮细胞间隙进入一个助细胞，释放精子。

The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.

两个精核和管核都是从同一个小孢子核有丝分裂产生的。

The radar features a liquid-cooled traveling wave tube transmitter; an exciter; a three channel microwave receiver and programmable signal and data processors.

它有一个液体制冷的行波管发射机，一个激励放大器，一个有三个频道的微波接收机和一个可编程的信号及数据处理机。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。