1、

Ambient noise of the test room and signal characteristics of audiometric system seem to be the two main variables during the extended low-frequency hearing tests. The present data were compared with ISO 226-1987 and some other reports.

文中结果同ISO226-1987及国外有关资料进行了比较.分析表明,测听室环境噪声、所用信号的谐波失真及频率稳定性乃影响扩展低频测试结果的主要变量。

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2、

When the hydrodynamic front reaches the ambient medium it acts like a fast-moving piston.

当流体力学波阵面抵达周围介质时,它像一个运动迅速的活塞。

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3、

It has been proved both by the test and by the theoretical analysis that the self-cooled induction motor of the enclosed type dif-fuses its heat in such a passage: the winding → the stator core → the frame → the ambient medium.

实验测试与理论分析都证明:自扇冷式封闭型感应电动机的散热路径为绕组→定子铁心→机座→周围介质。

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4、

Effect of Dynamical Behavior of Long Span Cable-stayed Bridge with Ambient Medium

环境介质对大跨斜拉桥动力特性的影响

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5、

According to corresponding evaluation model, the paper estimates the exposure dose of PTS through three exposure ways in different ambient medium.

根据相应的评价模型,对多介质环境中PTS的暴露量进行了估算。

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6、

In 1952, Bondi solved the hydrodynamic version of the star in a static ambient medium, who showed a certain gravitational capture radius, got Bondi accretion rates.

Bondi(1952年)研究了恒星对静态气体的吸积问题,确定了引力捕获半径和得到了Bondi吸积率。

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7、

When comparing the exposure dose of the same PTS in different ambient medium, it is found that it was the biggest dose in urban parks and roadside dust and the next was in the way of vegetable ingestion. 4.

对不同介质下同种PTS类物质的暴露量比较发现,城市公园及路边灰尘环境下的暴露量最大,其次是蔬菜摄取途径。

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8、

Using the health risk assessment model of chemical carcinogens and non-carcinogens and combing with the maximum acceptable risk level recommended by relative agencies and authors, the paper develops the risk assessment of carcinogenic and non-carcinogenic PTS in different ambient medium of Shanghai.

采用化学致癌物与非致癌物的健康风险评价模型,结合有关机构和作者推荐的最大可接受风险水平,对上海市多介质环境下的致癌类与非致癌类PTS进行定量化的风险评估。

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9、

Ambient stresses τ 0 are between 0 7-3 MPa, averaging 2 2 MPa , an area with low stress.

环境应力τ0值在07~30MPa之间, 平均为22MPa,属于低应力地区.

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10、

It combines the high-resolution capability of cryogenically cooled semiconductors, with the ambient-temperature operation capability of scintillators.

它结合了深冷冷却半导体的高清晰度能力,在闪烁常温操作能力。

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11、

When a large refrigeration system with air-cooled condenser runs in winter, since the ambient temperature is low, the condensing pressure of the system will be unusual low, affects the system feeding and operation.

采用风冷冷凝器的大型制冷系统在冬季运行时,由于冷凝器所处的环境温度较低,会导致冷凝压力过低,从而影响到正常供液和系统的正常工作。

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13、

Effect of Ambient Temperature on Backlash Error in Gear Drive Mechanism

环境温度对齿轮传动机构空程误差的影响

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14、

The sensor of the device uses light bridge to be the compensation structure, and this method can get rid of the bad influences caused by ambient conditions.

其传感器内采用光桥式补偿光路,可以克服各种外界因素对测量产生的不利影响。

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15、

High-purity ultrafine magnesium hydroxide was prepared by ambient temperature-state reaction using hexammoniated magnesium chloride as material.

以自制的六氨氯化镁为原料,采用常温固相法制备了高纯超细氢氧化镁.

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16、

Under mild conditions, at room temperature and ambient atmosphere, diphenyl thiourea could be synthesized through the reaction of aniline and CS 2 over AlCl 3 catalyst with high yield and high selectivity.

常温常压下,用AlCl3作催化剂催化苯胺和CS2进行反应,可以高收率和高选择性地得到二苯硫脲。

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18、

Electron beam-irradiation method was applied to prepare nano-sized nickel powders in aqueous system at room temperature and ambient pressure using polyvinyl alcohol ( PVA) and dodecyl trimethyl amine bromide ( DTAB) as the surfactants respectively.

在水溶液中,于常温常压下分别使用聚乙烯醇(PVA)和十二烷基三甲基溴化胺(DTAB)为表面活性剂,用电子束辐照方法制备了纳米镍粉;

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19、

The RTP temperature, the RTP time, the cooling rate, the ambient and the dopant atoms influenced the density and distribution of point defects in wafers, and then affected oxygen precipitates.

快速热处理温度、时间、降温速度、退火气氛、掺杂原子等都对硅片中点缺陷的形成及分布产生影响,进而影响氧沉淀的形成。

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20、

Analyses and calculations show that, by ambient temperature higher than 1 centigrade degree, the system should be equipped with radiators to keep the temperature of working oil below 60 centigrade degrees.

分析计算表明,气温在1℃以上时,为保证工作油温不超过6℃,必须在系统中增加散热装置。

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