I am going to decompose them, so I have one component here and this component equals mg times the cosine of alpha.
分解重力,这里得到一个分量,这个分量等于mgcosα
The task force also recommends a lowerdose for prevention: just one low-dose aspirin (81 mg) daily or oneregular aspirin (325 mg) every other day.
工作组还建议减少预防用阿司匹林的剂量:每天一粒低剂量阿司匹林(81mg),或者隔一天吃一粒普通剂量的阿司匹林(325mg)。
However, green tea contains less caffeine than coffee: there are approximately thirty to sixty mg. of caffeine in six - eight ounces of tea, compared to over one-hundred mg. in eight ounces of coffee.
不过绿茶中的咖啡因含量比咖啡少得多:6 ~ 8盎司茶叶中大约含有30 ~ 60 mg的咖啡因,而8盎司的咖啡中含有超过100 mg咖啡因。
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