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Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

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Backtrace:

File: D:\database\translate.php
Line: 83
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 117
Function: lang

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 117
Function: lang

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant SEC_KEY - assumed 'SEC_KEY'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 117
Function: lang

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

亮相!全面采用中国标准-Shandong Bote Bearing Co., Ltd.

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

Filename: database/translate.php

Line Number: 83

Backtrace:

File: D:\database\translate.php
Line: 83
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 28
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 28
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant SEC_KEY - assumed 'SEC_KEY'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 28
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

亮相!全面采用中国标准

2023-07-04

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

Filename: database/translate.php

Line Number: 83

Backtrace:

File: D:\database\translate.php
Line: 83
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 32
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant APP_ID - assumed 'APP_ID'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 32
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant SEC_KEY - assumed 'SEC_KEY'

Filename: database/translate.php

Line Number: 88

Backtrace:

File: D:\database\translate.php
Line: 88
Function: _error_handler

File: D:\wwwroot\bot-bearing.com\application\views\news\IndustryNewsPage.php
Line: 32
Function: lang

File: D:\wwwroot\bot-bearing.com\application\controllers\news.php
Line: 125
Function: view

File: D:\wwwroot\bot-bearing.com\index.php
Line: 315
Function: require_once

6月29日,时速80公里A型中国标准地铁列车(以下简称A型标准列车)在广东广州发布,将在广州地铁投入运营。

A型标准列车由广州地铁集团与中车长客股份公司共同研制,在关键核心技术攻关取得重大突破,车体、转向架等关键系统全面采用中国标准,轴承、联轴节、芯片、高低压电气元器件等28项关键部件实现自主化,大幅降低列车检修运维成本,助推产业规模化和行业规范化。

中国标准地铁列车是以中国标准为主导,采用标准化、模块化、系列化的设计理念,继承既有地铁列车运用经验,结合国内地铁用户需求自主开发的、具有技术引领性的全新产品平台。地铁列车根据车体宽度可分为A、B、C等多种型号。

绿色节能是标准列车的重要发力方向,该列车采用永磁牵引系统及运用综合节能控制技术,与传统异步牵引系统相比,整车节能15%以上;采用轻量化高频辅逆系统,每列车减重600公斤以上,进一步降低运行能耗。

(来源:科技日报微信公众号)