求：“质保一年或2000小时,先到为准”的英文翻译

1、具体分组织措施和保证措施,明确责任人,并具有一定针对性

1、证明其产品为某厂家生产；
2、证明厂家对其做了物理性能及化学成份检测,并对检测结果负责.
3、注明厂家地址、电话及其联系方式

这个好像是现使现买,所以不要留太长时间,pH计定标一次可以使很长时间,使完不要去动他.
貌似这东西很便宜,也就几块钱,最好一个月就重新定标一次.

钢材质保书总重量是没有固定的,这要看客户的订提货量以及钢厂的出厂日期而定,因此质保书会出现总重量只有几吨的情况；钢板的长度不固定,一般在5米--13米之间,不排除有一些特殊长度的,这个厚度也可能是卷板,邯宝钢厂生产的卷板最大厚度可到22,（普碳系列）

1 many of our products are guaranteed for three years, for the tube light we also warranty for three years. We can get a quality assurance agreement, the shelf life of products due to quality problems caused by damage, our company can be a free repair or replacement. More than the warranty period, we can for you to provide technical support and repair services.
2.LED lamp service life to some portion of interpretation, the LED life in general 50000 - 100000 hours, high power, high temperature on the LED life will be affected. As well as the drive power, and" LED lamp" related to the lifespan. Now we LED lamp service life is 30000 hours, did not mean that after 30000 hours, the lamp is broken, not bright. We refer to the 30000 hours after the light may be greater than 30%, lumen values will be reduced. But the lamp still can be normal use. Achieve 5W hours or longer. Now the energy-saving lamp is labeled as such life. In LED industry, are the standard.

瞳蓝宝石型大目镜,“易折叠”眼罩,即使戴着眼镜、长时间观测也方便舒适,不累不晕 大口径,全面镀增透膜,多层宽带增透绿膜镜头,全面确保更高对比度的同时也亮度特高,特别是在昏暗的环境下,比一般的望远镜看到更多的景物细节 BAK4镀膜高级大棱镜,即使是边缘像质也毫无遗留地清晰明亮

正在使用中,效果不错

据我的收集：质保有几种解释：比如说质保三年：
第一年.全免费维修
第二年.免材料费.不免运费.免维修费.
第三年.免材料费.不免运费.不免维修费.

整车质保这个数据来自于厂商对外公布的该车质保周期或公里数.一般来说都是两年/6万公里,个别厂商会有超越这个年份和公里数的质保机制.整车质保就是各种零部件在确认非人为损坏而是品质问题是免费更换,如速度表,空调...