查询词典 time zone

The time in any of 24 time zones, usually the mean solar time at the central meridian of each zone. In the continental United States, there are four standard time zones: Eastern, using the 75th meridian; Central, using the 90th meridian; Mountain, using the 105th meridian; and Pacific, using the 120th meridian.

标准时：24个时区的任何一个时区，通常指每个时区中间子午线的平均太阳时间在美国大陆有4个时区：东部时区使用第75度子午线；中部时区使用第90度子午线；山区时区使用第105度子午线；太平洋时区使用第120度子午线

And it reflects that the magmatism time of Ailaoshan-Jinshajiang potassic alkalic rock zone from east is younger than west magmatism time. The time is from the middle of Eocene to Miocene. The durative time of magmatism is 40Ma.

这种因果关系，反映了青藏高原在两个大陆碰撞之后继续向北偏东(21°)推移，受到了塔里木、柴达木和康滇古陆古老基底的阻挡，导致了长达数千公里的金沙江-红河走滑拉分带的形成，同时伴随着钾质碱性深成岩和火山岩产出。

In order to understand the relationship between endogenous phytohormones and preharvest fruit drop of apples, contents of IAA and ABA in peduncle, bourse and the tissues around abscission zone of several apple cultivars were periodically analyzed during 8 weeks before harvest, and activity of cellulase in the tissues around abscission zone were periodically analyzed during 20 days before harvest, and ethylene evolution in fruit were analyzed in harvest time.

为了探讨苹果采前落果与内源激素之间的关系，在采前8周间定期测定了不同苹果品种的果柄、果台和离层形成部位组织中IAA、ABA含量；在采收前20d内定期测定了离层部位组织中细胞壁分解酶的活性；在收获期测定了果实乙烯的发生量。

The amount of web material added to, subtracted from and present in the tension zone in a sample time period is then converted to an unstrained amount of web material that when combined provides an estimate for the present amount of unstrained web material present in the tension zone.

然后，将采样时间周期内添加到张力区的、从张力区中减去的以及存在于张力区中的卷筒纸材料的量转换为卷筒纸材料的非应变量，当将他们相结合时，给出存在于张力区内的非应变卷筒纸材料的当前量的估算。

Therefore liquid CO_2 avoids gas-solid multiphase flow, and supplies continuous low temperature gas for cryoprobe. Experimental results show that the 2-dimension temperature distribution for the first time, it includes:(1) The cooling velocity and freezing zone increases along the flux up at certain size of the cryoprobe in the same biological tissue.(2) As the diameter of cryoprobe increases, the temperature will descend faster, freezing zone will be broader obviously, and ice ball become larger. Until it arrives heat balance, the temperature keeps invariability.(3) Single freezing-thaw results in biggish mechanical injury already for loosen tissue such as pork liver; Successive freeze-thaw circle could quicken freezing and thaw velocity for compact tissue, and it has proved the more mechanical injury of successive freeze-thaw circle than the single freezing-thaw treatment.

文中首次对生物组织进行了二维温度场分布实验研究，得出：(1)当刀头大小一定，对同一组织冷冻时，流量越大，降温速度越快，降温影响区域越大；(2)随着冷刀直径的增加，降温速度随着增加；温度影响区域明显增大；冰球直径也随着增大，热量平衡后温度几乎不随时间变化；(3)对于结构疏松组织比如猪肺脏，单次冻融对组织已造成较大的机械破损；对于结构较致密组织，多次反复冻融可以使降温和复温速率增加，单次冻融的热应力造成的机械破损较小，多次冻融后造成的机械破损比单次冻融所造成的机械破损大；(4)直喷式刀头比导热式节能约15％。

At the same time, according to the theory of ventilation network and limited wind speed method, a model for filtrating flow field in goaf was built and a simulation software for determining the three-zone in goaf was developed. The three-zone chart and the corresponding coordinates of two isolines can be directly gained by using mix-program of VB and MATLAB.

同时，根据通风网络理论建立了采空区滤流场的数学模型，以极限风速法为基础，利用VB与MATLAB进行混合编程编制了采空区自燃&三带&模拟软件，可直接绘制三带图并输出两条风速等值线所对应的坐标。

Ata28 strain was mutated by UV with the most optimum mutant time, including 10, 20, 30s, that was chosen by the trial tests, considering the lethality rate and positive mutation rate of Ata28; it was found that 15 mutant strains were shown antagonism against Tbs3 strain by antagonism test on PDA plate, inhibition zone of mutant strains exceeded the original strain Ata28, and the maximum of inhibition zone reached 9.4mm; the mutant strain Uv-126 was found most effective in tobacco brown spot control and a rate of efficiency control reached 52.2% on tobacco plants three days after bacteria spraying.

采用硫酸二已酯诱变Ata28菌株，通过预备实验，计算Ata28菌株在不同诱变时间的致死率和正变率，选择该菌株的最佳诱变时间20min，40min，60min诱变；通过平板对峙培养，筛选出17个突变菌株在PDA平板上可明显抑制Tbs3的生长，抑菌带高于出发菌株Am28，抑菌带最大值达10.5 mm；经温室控病初筛和复筛试验，获得了对烟草赤星病有较好防效的突变菌株Des-66、Des-50，烟苗经Des-66、Des-50菌液处理3d后，接种Tbs3的防治效果达52.0％、56.6％，比出发菌株Ata28的防治效果好。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数，用非线性分析程序对体预应力筋混凝土梁进行了参数分析，依据分析结果提出了以综合配筋指标和预应力度为参数的等效变形区长度的计算公式，进而提出了基于等效变形区长度的极限挠度计算公式；体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式；依据试验和非线性数值计算结果，将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁，推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

Such parameters as the percentage of ordinary reinforcment, amounts and configuration of unbonded prestressed tendons, the ratio of span to depth and the loading patterns were considered. Based on the results, the fomula for the eqivalent length of deformation zone on the beams at ultimate were developed. A simple formula was developed for the ultimate mid-span deflection of concrete beams with concept of equivalent length of deformation zone, and the deformation of beam before internal reinforcement yielding was predicted by the traditional formula for the deformation of partically prestressed concrete beam. Then an analytical model was deduced for analyzing the ultimate stress increment in those concrete beams prestressed with external or internal unbonded tendons based on the mid-span deflection.(4) Testes were carried out on a thin-walled concrete box beam presressed with external CFRP tendons to study its short-term performances under uniform load, long-term behaviors under uniform load, and full-time performance under four-point load in turn.

3以体内非预应力钢筋配筋率、体外预应力筋配筋率、体外预应力筋布置形式、预应力度、跨高比、荷载形式等为参数，用非线性分析程序对体预应力筋混凝土梁进行了参数分析，依据分析结果提出了以综合配筋指标和预应力度为参数的等活动房效变形区长度的计算公式，进而提出了基于等效变形区长度的极限挠度计算公式；体内非预应力钢筋屈服前的挠度计算采用常用的部分预应力混凝土梁挠度计算公式；依据试验和非线性数值计算结果，将不同转向块布置形式的体外预应力混凝土梁简化为跨中一个转向块的体外预应力混凝土梁，推导了基于跨中挠度的体外预应力筋应力增量的简化计算公式。

This earthquake occurred at edge of 2003 year seismically risk zone. In this paper, on the basis of main evidence of the year risk zone and anomaly tracking, the authors analyzed the precursory anomalies including groundwater level of Dadianzi well and Kulun; water radon of Kailu well before MS5. 9 earthquake. At the same time, the authors also analyzed and studied the precursory anomalies around Inner Mongolia region. The ...

根据年度危险区的确定、前兆异常跟踪及其主要依据，分析了这次5.9级地震前大甸子井、库伦井地下水位、开鲁井水氡等前兆异常，在此基础上，对内蒙古附近区域的前兆异常也进行了分析和探讨，表明该次地震前在内蒙古及附近区域出现了一组中期、短期前兆异常及宏观异常，文中还研究了该区域前兆异常的演化过程。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。