1) Straight-neck and double mouth bottle
直颈双口瓶
2) port bottleneck
端口瓶颈
5) population bottleneck
人口瓶颈
1.
The removal of the Chinese population bottleneck does not lie in keeping a population of 1.
中国"人口瓶颈"的消除并非是把人口稳定在15亿左右,而在于实施"人口负增长战略",分三阶段将人口总量降至3—4亿的小规模态。
6) two-neck bottle
双颈瓶