This is the Guangxi Beibu Bay economic zone facing a bottleneck factor.
这是广西北部湾经济区面临的一个瓶颈因素。
Drought stress is a bottleneck factor for plant growth and development .
干旱胁迫是影响植物生长发育的主要因子。
Lots of people hold that the bottleneck factor which restricts export trade of Henan Province is due to the little scale and small quantity of foreign investment.
有不少人认为，制约河南外贸出口的“瓶颈”因素在于省内外企业数量少、规模小。
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