Instead of reducing your business concentration, consider providing services outside your core business or activity. In doing so, you'll add value to your account.
我会建议你考虑另一种策略：与其减低你对一个客户的依赖情度，倒不如考虑为现有客户提供主业务以外的服务，从而为你的客户增值。
Limit Value Air concentration of chemical substances to which workers may be exposed to daily without adverse effect.
工人每天接触不至于产生不良反应化学介质的空气浓度的极限值。
Then the water into the photoelectric colorimetry seat, instrument by comparing the color depth and ion concentration value.
然后将此水样放入光电比色座内，仪器会通过比较颜色深浅从而得到离子浓度值。
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