The regulations and methods for valve base seal test, valve seal test, valve strength test, long term valve test, fatigue test and operating torque test were summed up in this article.

汇总了塑料阀门产品要求的阀座密封试验、阀体密封试验、阀体强度试验、阀门长期试验、疲劳强度试验和操作扭矩的规定和方法。

youdao

By giving products of assured quality a seal of approval, the system brings uniform quality standards to the market, introduces order, and increases the base of suppliers.

通过对质量有保证的产品盖上审核印章，该系统为市场提供了统一的质量标准，维持了秩序，并增加了供应商数量。

youdao

Never let the water level fall below the base of the tree or the cut end may seal over, preventing further water intake.

不要让水位降到树基以下，或者树干截面以下，否则截面干涸以后，松树就无法充足的吸收水分了。

youdao

Mr Critchlow said a technical bulletin was issued to gas engineers more than 18 months before the tragedy instructing them to cut off the base of the grill seal with scissors.

BBC: Flavel cooker

But the fightback was snuffed out five minutes from time by scrum-half Genia, who darted over from the base of a ruck to seal victory.

BBC: Australia 30-13 South Africa

McCain rattled through a number of talking points designed to appeal to his Republican base. iReport.com: Did McCain seal the deal?

CNN: McCain: I work for you