尽管大致上所有品种都拥有相同数量的骨头，但因选择性育种的缘故，狗狗骨头的大小和形状也会有相当大的差别。
Although the number of bones is roughly the same in all breeds, there is considerable variation in the size and shape of individual bones, as the result of selective breeding.
讨论了配位基的形状，反应物的构造，碱的类型以及反应时间对反应速率和立体选择性的影响。
The effects of the structure of ligands and substrates, the type of alkali, and reaction time on rate of reaction and stereoselectivity were discussed.
选择性焊接可以完成倾斜式波峰焊接或使用不同的喷嘴形状与材料的水平式焊接。
Selective soldering can be done under an Angle (tilt) like in wave soldering or horizontal with different shape of nozzles and nozzle materials.
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