How does a monopoly firm choose the strategies of product upgrade and compatibility to create the new sales volume when the products have the network externality character? To explore the problem,this paper studies the monopoly firm s upgrading and pricing strategies by construct of a 2-stage dynamic model: a monopoly firm supplying the upgrade product.
当产品存在网络外部性时,厂商如何选择其产品升级和兼容性策略以创造新的销售额和留住原有的消费者,进而对抗其竞争对手?通过构造一个两阶段的动态模型,垄断厂商在第2阶段提供其产品的升级版本,按照新旧版本间是完全兼容和不完全兼容两种情形,分析了存在网络外部性条件下,垄断厂商的产品升级与产品的定价策略。
There are two pints in a quart and four quarts in a gallon.
一夸脱是两品脱，而一加仑是四夸脱。
eleven and a half quarts of molasses at 8 cents a pint;
八分钱一品脱的糖浆要十一夸脱半；
A container with a pint capacity.
一品脱的量器或容器
One pint is about 0.57 litre.
一品脱大约是0.57升。
Draw off another pint of beer, please.
请再量出一品脱啤酒。
He ordered himself a pint of beer.
他要了一品脱啤酒.
pull(a pint of beer out from a barrel)
（从桶中）汲取（一品脱啤酒）
He drained a pint of beer.
他喝了一品脱啤酒。
quaffing his beer by the pint
论品脱地大喝啤酒.
an imperial pint, gallon, pound, etc
英制品脱、 加仑、 磅等.
That bowl has a capacity of two pints.
那只碗的容量有两品脱。
A pint of bitter, please.
请来一品脱苦啤酒.
You cannot get a quart into a pint pot.
你无法把一夸脱的酒装进一品脱的瓶中。
a United States liquid unit equal to 16 fluid ounces; two pints equal one quart.
美国液体单位等于液体英两；二品脱等于一夸脱。
-- And twopence, he said, for a pint.
“还要两便士，”他说，“好喝上一品脱。
and orders three pints of Guinness.
要了三品脱吉尼斯黑啤酒。
always ordering three pints at a time.
而他总是一次要三品脱啤酒。
a pint of draught Guinness
一品脱散装吉尼斯黑啤酒.
