As you can see, along the length of the hair, there are three main parts called the bulb, the root and the shaft.

如你们所见，顺着头发的长度可以分为三个主要部分，分别是毛囊、毛根和毛干。

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We do this because the lead bulb is the main weight for the hull.

我们这样做，因为带头的灯泡，主要是重量为船体。

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Systematically studying the influence on bulb growth caused by different seed size with quantities analysis method and also making quadric polynomial return analysis towards main characters.

采用数量分析的方法，系统研究了不同种球大小对鳞茎生长的影响，并对主要性状进行了二次多项式回归分析；

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The research will focus on the current two main threats to the cereal crop: wheat bulb flies that attack the roots, and cereal aphids that tackle the tops of plants.

BBC: Broccoli (Image: BBC)

One of the main challenges faced by LED lighting manufacturers is dealing with waste heat produced by the bulb.

BBC: LED light bulb to last more than 20 years