查询词典 D.A.

When skin is exposed to sunlight, a sterol present in dermal tissue is converted to vitamin D, which, in turn, is metabolized in the liver and kidneys to form a hormone.

当皮肤暴露于阳光下，一个甾醇存在于真皮组织转化为维生素D ，而这又是代谢肝脏和肾脏，形成激素。

Yellow-throated marten\'s relationship is between Stone marten and Fisher marten.Fisher marten is the first species who was divided from Martes.The second one were Yellow-throated marten and Stone marten.Based on the analysis of the fossil note,Martes came from Central Europe,Fisher marten,Yellow-throated marten and Stone marten belonged to a branch which evolved to temperate zone.Boreal forest martens was another branch which evolved to cold environment.It is suggested that Yellow-throated marten and Fisher martenwere ascertained genus separately.4、By contrasting and analyzing 11 complete mitochondrial control region gene sequences of Mustelidae,the extended termination associated sequence domain、the central domain and the conserved sequence block domain were identified.A extended termination associated sequence(ETAS1) and eight conserved sequence(CSB-F、E、D、C、B、1、2、3) was indicated,and sequence mode was presented.Different kind of short repeat sequences were found between CSB1 and CSB2.With wolf as the outgroup,the phylogenetic evolution relationship of Mustelidae was analyzed using the neighbor-joining method.

而基于鼬亚科动物线粒体DNA12种重链编码蛋白基因序列及石貂和渔貂线粒体ND2和cyt b全序列，以狼、狗獾和水獭为外类群，应用NJ、MP和ML法构分别构建貂属和貂熊的系统进化树，结果表明：紫貂与日本貂亲缘关系较美洲貂近，石貂与真貂亚属亲缘关系较近，黄喉貂介于石貂和渔貂之间；渔貂是最早从貂属分化出的种类，其次是黄喉貂和石貂；结合化石记录分析，貂属起源于中欧地区，渔貂、黄喉貂和石貂属于一个向温带进化的分支，而真貂亚属为另外一个向寒冷环境进化的分支，建议将黄喉貂和渔貂分别定为单独的属。4、比对并分析11种鼬科动物线粒体DNA控制区序列，识别出延长终止序列区、中央区和保守序列区3个区域，指出了一个终止相关序列ETAS1及8个保守序列(CSB-F、E、D、C、B、1、2和3)，并给出了序列通式，在CSB1和CSB2之间发现具有不同形式的短串联重复序列。

The gas sensor ,JTY-LZ-F732,and A/D converter ADC0809 are used to design the monitor submodule of density of smoke.

对烟雾浓度的监测则通过JTY-LZ-F732气体传感器和A/D转换器ADC0809实现。

The device is also ideal for all types of A/D converters of up to 14-bit accuracy, either successive approximation or inte-grating designs, and in general can offer better performance than that provided by standard self-contained references.

该设备还非常适用于所有类型的A / D转换器的分辨率高达14位精度，无论是逐次逼近或英特光栅的设计，一般能提供更好的性能比和自给自足的参考标准提供。

The entire data acquisition system may complete to 8group input signal sampling, the AD conversion accuracy is 12, Selection of successive approximation type A / D converter, the advantage of high speed, low power consumption.

整个数据采集系统可以完成对8路通道输入信号的采样，选用12位逐次逼近型A/D转换器，其优点是速度较高、功耗低。

More significantly, it must have passed through the potential quality-bottleneck of an analog tape machine or more likely the A–D converters of digital equipment.

更引人注意的是，它必须已经通过模拟及其或者像数码产品的A-D转换器中的潜在的质量瓶颈。

As a commercial entrepreneur, he suffered setbacks, enduring a difficult relationship with the BBC, which began using Bairds's Televisor in 1929 but had replaced it with the Marconi EMI electronic system by l935, But as an inventor he was revolutionary going on to develop technology that was way ahead of its time, including radar, colour and 3-D W and fibre optics.

作为一名商业的企业家，他饱受挫折，他与英国广播公司维持着一种并不融洽的关系，后者在1929年开始使用贝尔德的电视接收系统，但是到1935年就用无线电报 EMI 电子系统取代了它。尽管如此，作为一个具有革命精神的发明者，他仍然坚持发展领先于时代的科学技术，这其中包括雷达，色彩，3－D 电视和纤维光学。

You can detach from this session by pressing C-a d. You can also detach just by closing the terminal emulator that contains the session.

你可以按C-a d卸下這個會話，此外关闭包含该会话的终端模拟器也可以卸下会话。

A pilot test with a feed flux of 12 × 104 m3/d was carried out.

建立了一套1.2×105m3/d天然气膜法脱水的工业试验装置，并进行现场试验。

This is a picture of Maurice Druon, the Honorary Perpetual Secretary of L'Academie francaise — the French Academy. He is splendidly attired in his 68,000-dollar uniform, befitting the role of the French Academy as legislating the correct usage in French and perpetuating the language. The French Academy has two main tasks: it compiles a dictionary of official French — they're now working on their ninth edition, which they began in 1930, and they've reached the letter P. They also legislate on correct usage, such as the proper term for what the French call "email," which ought to be "courriel." The World Wide Web, the French are told, ought to be referred to as "la toile d'araignee mondiale"— the Global Spider Web — recommendations that the French gaily ignore.

这是莫理斯图翁他是L'Academie francaise的荣誉终身院士–或称法兰西学术院他身穿价值六万八千美元的华丽院士服与他在法兰西学院的职责十分相称他的工作是负责规范法文的正确用法并确保法文永垂不朽法兰西学术院肩负两项使命：编纂官方版的法文字典–现在正在编第九版他们从1930年就开始了，现在编到字母P 这些人也规范语言的正确用法例如，法国人常说的伊媚儿"email"应该叫做电子邮件"courriel"而网际网路"World Wide Web"应该要称为"la toile d'araignee mondiale"–全球蜘蛛网种种法国人兴高采烈地忽略的建议

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。