部分时间

There are fifteen minutes left for this section of the test.

完成这个部分的试题的时间还剩下15分钟。

The curve length of the QRS complex is longer than that of other parts of the ECG in the same interval, so that the ECG curve length characteristic is suitable for QRS dctcction. Our algorithm not only detects the QRS complex position but also its duration.

该算法根据QRS复合波的曲线长度在一定的等时间间隔内大于ECG其他部分的特性进行QRS波的信息提取，其不但检测QRS波的位置，而且同时检测出QRS波的宽度。

Making dollhouse portions may feel silly at first, but the dishes are such crowd pleasers, you may find yourself turning out Lilliputian meals all the time.

洋娃娃，使部分可能觉得无聊，在第一，但菜式等人群入你，你可能会发现自己转出侏儒饭菜全部时间。

The study of this dissertation involve in three aspects as follows:analysis ofproduction-inventory systems;reliability analysis of the retrial queueing system;and the limiting distribution of the residual lifetime of discrete-time Markovianrepairable system.

本文的主要工作可分为三部分：生产库存模型存储水平的稳态分析；重试排队系统的可靠性分析；离散时间可修系统剩余寿命的极限分布。

The result shows that:① Annual scale of China's inbound and domestic tourism growth process can be divided into 3 parts: trend, cycle, and impacts of the incidents.② The trend and cycles of inbound tourism are different from the domestic. Inbound tourism grows lineally while domestic grows exponentially.③ Inbound tourism experienced two different kinds of cycles.

结果发现：(1)近20多年来我国入境和国内旅游的成长，在年际尺度上均可分解为趋势项、周期项和事件冲击项3个部分；(2)入境旅游和国内旅游客流量的增长趋势存在一定的差异，入境旅游长期趋势为直线增长，国内旅游长期趋势为指数增长；(3)入境旅游存在2个时间尺度的客流量波动周期，较长的周期为20年，较短的周期为6年，而国内旅游只存在一个10年左右的周期。

This method can reduce the algorithm's run time, and partly avoid the local minimum.

通过增加步长缩短了路径规划的时间，同时也部分的克服了路径徘徊等人工势场法的缺陷。

B Of the six basic media MS, MS1/2 (half-strength of MS salts and vitamins), WPM, DKW, B5 and SH, MS1/2 was the most proper one to induce somatic embryos. Somatic embryos generally regenerated directly from excised zygotic cotyledons. PGRs combination affected somatic embryogenesis significantly. Medium with NAA 1mg/L, TDZ 0.05mg/L, IBA 2—10mg/L combined with BA 10mg/L, or IBA 10mg/L integrated with BA 0-2mg/L gave the highest induction rate. Excised zygotic hypocotyls had the strongest potential to produce callus. Callus induction was also affected significantly by media and PGRs. The proper callus induction condition was MS1/2 medium containing NAA 1mg/L, IBA 10mg/L, BA 2-5mg/L and TDZ 0.05mg/L. Harvest period affect somatic embryogenesis significantly. Zygotic embryo explants collected from the end of July to the middle of August had strong potential to generate somatic embryos, when endosperm finished solidification, different parts of the embryos were completely formed, the size of embryos occupied about 2/3 of the embryo sac. Provided with optimized conditions, direct somatic embryogenesis rate can attain to 33. 68%, and callus induction rate of hypocotyls was up to 90.7%. Cytological observation on megasporogenesis and zygotic embryogenesis of Manchurian ash showed that the ovary was twicarpellum, twilocular with two ovules each loculus. The ovule was tenuinucellar and anatropous, with one megasporcocyte. The development of embryo sac is of the Polygoum type.

体细胞胚胎发生研究的结果表明：(1)成熟过程中的合子胚是诱导水曲柳体细胞胚胎发生的最佳外植体材料；(2)在所试验到的MS、MS1/2（将MS的所有成分均减半）、WPM、DKW、B〓、SH等六种基本培养基中，MS1/2是最适合诱导水曲柳体细胞胚胎发生的基本培养基；(3)水曲柳的体细胞胚胎发生以直接发生为主，体细胞胚主要来自于从合子胚分离的完整子叶；(4)培养基中的激素组合对水曲柳的体细胞胚胎发生有显著影响，诱导直接体细胞胚发生较好的激素组合有NAA 1mg/L+IBA 2，5，10mg/L+BA 10mg/L+TDZ 0.05mg/L和NAA 1mg/L+IBA 10mg/L+BA 0，2mg/L+TDZ 0.05mg/L；(5)合子胚分离的下胚轴具有最强的愈伤组织诱导潜力，少数愈伤组织可以分化出体细胞胚；(6)愈伤组织的诱导也受培养基和激素配比的显著影响，最适宜诱导的培养条件为MS1/2+NAA 1mg/L+IBA 10mg/L+BA 2，5mg/L+TDZ0.05mg/L；(7)采种时间对体细胞胚胎发生有显著影响。7月末到8月中旬的合子胚具有较强的体细胞胚发生潜力，此时种子尚未成熟，胚乳已呈固态，种胚的各个部分已分化完全，种胚体积占胚腔的大约2/3；(8)在各自综合的最适条件下，完整子叶的体细胞胚诱导率可达33.68%，下胚轴的愈伤组织诱导率可达90.7%。

A great deal of the early part of humanity's long struggle to measure time amounted to trying to decide what exactly it was that should be measured.

翻译一：人们测量时间的早期漫长努力中很大一部分是他们在试图决定应被测量的到底是什么？

Not that Rossini is the real influence here; rather Franz Strauss's hero, Brahms, and the central slow section in a flowing compound time—virtually a movement on its own with a full close at the end--has a Brahmsian lusciousness of melody writing, and all through it is striking how quickly the composer moves away from pyrotechnics to warm, lyrical writing.

这并不是说罗西尼是真正的影响力，而是弗朗茨施特劳斯的英雄，勃拉姆斯，中央部分在缓慢流动的复合时间实际上是对自己的运动，一个在年底全部关闭-有一个甜美的旋律写作Brahmsian，所有通过它的速度是惊人的举动，作曲家远离烟火温暖，抒情文字。

Customized milk run project for export parts The purpose of the customized milk run project for export parts was to gain competitive advantages in terms of cost and time among other Fiat subsidiaries.

定制奶办项目供出口零件为了定制奶办项目的出口部分，是获取竞争优势，在成本和时间之间的菲亚特等子公司。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。