derivative absorption spectrum,导数吸收光谱 derivative action;D-action,微分作用;D-作用 derivative action coefficient,微分作用系数 ..
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derivative action D-action 微分作用
D Arcade Action Simulation 游戏类型
action d' apport 发起人股
Megasonic Action D 米加动作跑酷
The F. D. A. announced in 2007 that it was aware of that problem, but it has taken no action.
食品和药物管理局在2007年宣布它认识到了那个问题,但它没有采取行动。
"I think action takes place in part d, too," Helen suggested.
“我认为行动在D部分也发生了。”Helen提出。
Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.
通过阳光刺激皮肤产生的维他命D可以提供人体90%的需要,但是其也可以通过鱼类,鸡蛋和谷类来提供。
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