so study and control the noise of locomotive cab is very necessary.

1、

there is no air-condition system in locomotive cab for a long time, and motorman's working conditions is abominable.

摘要长期以来，机车司机室没有空调系统，司机工作条件恶劣。

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2、

locomotive cab applied ergonomic principles of design, structure, decorated with all-inclusive environment, elegant and easy to manipulate.

机车司机室应用了人机工程学原理设计，采用全包结构装饰环境优雅、操纵方便。

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3、

ross, joey, and chandler go on a ride-along with gary;

罗斯、乔伊和钱德一起坐在盖瑞的警车上去巡逻；

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4、

whenever i go on a ride, i'm always thinking of what's wrong with the thing and how it can be improved.

不管什么时候，只要我搭乘一个游乐设施，我总是会想这个设施有什么问题，怎么去改进它。

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5、

before directional, experienced player won't eat the touch, because doing so is likely to fall into a wrong path "" .

定向之前，有经验的牌手是不会随意吃碰的，因为这样做很可能“误入歧途”。

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6、

retrieves the current position of the pen (in logical coordinates).

获取笔的当前位置（以逻辑坐标表示）

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7、

the logical coordinates are the offsets as they would be if the pixels themselves were scaled.

逻辑坐标是像素本身经过缩放后将出现的偏移量。

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8、

the list may also include static items, such as logical group titles.

此列表还可包括静态项，如逻辑组标题。

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9、

stream: a logical group of model files.

流：模型文件的逻辑组。

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10、

a domain is a logical group of users and resources under the control of one server, called the primary domain controller (pdc).

一个领域是指由使用者及资源所组成的一个逻辑群组，该群组被一台称为主要领域伺服器（PDC）所控制。

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11、

if you do disable autocommit, you must execute an explicit commit after each logical group of commands.

如果您禁用了自动提交，则必须在每个逻辑命令组后执行一个显式提交命令。

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12、

the modules you define will create a logical group and liberal use of modules will prevent pollution of the global namespace.

您定义的模块将创建一个逻辑组，模块的自由使用防止了全局名称空间的污染。

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13、

a logical group of nodes that are combined to allow for a single point of administration.

组合到一起可以单点管理的节点构成的逻辑组。

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14、

example 3: you want to extract the metrics captured for each service class in the scstats logical group into a relational table.

示例3：您想将为SCSTATS逻辑组中每一个服务类捕获的指标提取到关系表中。

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15、

each tier defines a logical group of software modules that can be mapped to a physical piece of hardware.

每个逻辑层都定义了一组软件模块，它们可以映射到硬件的物理部分。

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16、

general purpose optical cable connector

通用光缆连接器

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17、

high performance optical cable connector

高性能光缆连接器

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18、

optical cable connector with focusing junction

有聚焦结的光缆连接器

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19、

optical cable connector without focusing junction

无聚焦结的光缆连接器

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20、

optical diagnostics in rarefied flows

稀薄流中的光学诊断法

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