11自身指示剂(Self indicator):有些标准溶液或被滴定物质本身具有很深的颜色,而滴定产物无色或颜色很浅,滴定时勿需另加指示剂,它们本身颜色的变化就起着指...
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silica gel self indicator 变色硅胶
Self-balancing strip indicator 条形自动平衡显示仪
self-diagnostics indicator 自诊断指示器
self-contained biological indicator 自含式生物指示剂 ; 自含式生物指示物
self-restoring indicator 自动复归指示器
self-contained attitude indicator 自主式地平仪
self restoring indicator 自动复归指示器 ; 自动恢复指示器
It found that the number of businesses with employees - one indicator of entrepreneurial activity, like self-employment - took a nosedive.
文章发现,有雇员的企业数目-创业情况的一个指标,如自我就业-暴跌。
There is only one useful indicator of a man's self-image: his wristwatch.
要衡量一个男人的自我定位,手表是唯一有用的标尺。
It's self winding, has a minute repeater, perpetual calendar, equation of time, jumping hour, power reserve indicator, and a bimetallic thermometer - everything but MMS messaging.
它可以自动上弦,具有三问报时、万年历、时差设置以及跳时功能,另外还配有动力储备指示器和双金属温度计——除了MMS彩信功能什么都有的。
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