1 简介 药物研发的关键之一是发现新的 先导化合物（lead compound）。一个好的先导化合物应当对潜在靶点具有较好的生物活性；同时其 关键理化性质 应当符合成药（druggable）的要求. Hi everyone, i have a problems regarding the usage of these phrases. Exposure to lead can occur in almost any trade.
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What tasks cause lead exposure? To lead the life of a saint seems to mean conducting oneself in ways a saint would be expected to conduct himself as he goes about his daily business, whatever it is. The figurative meaning of 'lead balloon' is 'total failure'.
Workers at the highest risk for lead exposure include those involved in iron work, construction, demolition,.
What is the literal meaning? 带来的自然也是截然不同的沉浸式体验，我随便打开个电影看看， 比起平常的ar眼镜，用dream glass lead se500吋+90°视场角的效果就像是一个开了全屏观影。 对比. The two primary risks are from hydrogen gas formed when the battery is being charged and. Elemental lead, lead metal, inorganic lead main.
It seems that all these phrases can be used to introduce an outcome, but does the outcome must be. Welding fumes are a complex mixture of metals metallic oxides, silicates, and fluorides. Lead on this page what are other names or identifying information for lead?
