这种双止回防回流阀应该按照美国国家标准化组织(ASSE)标准1024进行设计。
The dual check backflow preventer shall be designed under the ASSE Standard 1024.
凸面阀体配置钻孔的凸耳，符合美国国家标准化组织ANSI压力等级125/150尺寸标准。
Raised-face body has drilled and tapped lugs in accordance with ANSI Class 125/150 dimensions.
RTF使用美国国家标准化组织（ANSI），PC-8，Macintosh，或IBM PC的字符集来控制文档的外观和格式，不管文档是显示在屏幕上还是从打印机打印出来。
RTF uses the American National Standards Institute (ANSI), PC-8, Macintosh, or IBM PC character set to control the representation and formatting of a document, both on the screen and in print.
美国国家标准机构(ANSI)：是个非盈利性组织，调整美国标准化和符合评价系统。
American National Standards Institute (ANSI) : is a non-profit organization that coordinates the standardization and conformity assessment systems in the United States.
美国国家标准机构(ANSI)：是个非盈利性组织，调整美国标准化和符合评价系统。
American National Standards Institute (ANSI) : is a non-profit organization that coordinates the standardization and conformity assessment systems in the United States.
应用推荐