该文件的结论是，婴儿、儿童和产妇死亡率高的风险与母亲年龄太小、太大或已经有几个孩子的怀孕有关。
The document concludes that the high risk of infant, child, and maternal mortality is associated with pregnancies where mothers are too young, too old, or have already had several children.
头部圆且宽，两眼之间开阔，与犬的全身大小相称，既不太大又不太小。
Head - Round, broad, wide between eyes, its size in balance with the overall size of dog being neither too large nor too small.
平均分子量太小，不利于产物的吸附与水化，平均分子量太大。
Lower average molecular weight of LGV samples was unfavourable for the adsorption and hydration.
平均分子量太小，不利于产物的吸附与水化，平均分子量太大。
Lower average molecular weight of LGV samples was unfavourable for the adsorption and hydration.
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