The value of
pi is approximately 3.14159.
π的值大约是3.14159。
The circumference of a circle is calculated using the formula 2πr.
圆的周长通过公式2πr计算得出。
Engineers use
pi in calculations for various applications, such as fluid dynamics.
工程师在流体动力学等应用中使用π进行计算。
Pi Day is celebrated on March 14th (3/14) every year.
每年的3月14日（3/14）是庆祝π日的日子。
The area of a circle can be found by squaring the radius and multiplying it by
pi.
圆的面积可以通过将半径平方然后乘以π来找到。
In trigonometry,
pi radians equals 180 degrees.
在三角学中，π弧度等于180度。
Pi appears in many mathematical formulas beyond just circles, like in probability and statistics.
π不仅仅出现在圆的数学公式中，在概率和统计等领域也出现。
Archimedes used polygons to approximate the value of
pi.
阿基米德用多边形来近似π的值。
The symbol π was first used by William Jones in 1706.
符号π首次由威廉·琼斯于1706年使用。
The quest to calculate more digits of
pi has been ongoing since ancient times.
自古以来，人们一直在追求计算π更多位数的任务。
PHNOM PENH — China's Alipay, the world's largest online and mobile payment platform, signed a partnership agreement on Wednesday with Cambodia's Pi Pay, allowing customers to use their Alipay wallets to pay at Pi Pay's Point of Sale payment systems across Cambodia.
The partnership will see Alipay become immediately available as a payment option for Chinese tourists across Pi Pay's merchant network in Cambodia, which consists of over 1,400 businesses, including high-end dinning, haute couture fashion, spa treatment, mini-marts and petrol stations, said a joint statement released at the signing ceremony here.
"With the partnership, Chinese tourists travelling to Cambodia will be able to use the Alipay app for payments wherever Pi Pay QR codes are available," it said.
"Cambodian merchants who are partnered with Pi Pay will be able to use their Pi Pay terminals to take payments from Alipay users.
"With Cambodia being a popular destination among Chinese travelers, we are excited to work with Pi Pay as our acquiring partner to benefit our users and at the same time, to provide an effective platform for local businesses in Cambodia to reach Chinese consumers," she said.
"Together with Pi Pay, we will be able to provide Alipay users the same convenience they enjoy back home when they travel in Cambodia.
Pi Pay's chief executive officer Tomas Pokorny said since its launch in July, Pi Pay has rapidly grown to become the go-to-mobile payment options across Phnom Penh, with more than 168,000 downloads of the app and $27 million being spent or transferring by users.
"The partnership will allow Alipay customers to pay for goods and services in Cambodia through Pi Pay terminals," he said.
Pi Jianlong, a member of the 14th CPPCC National Committee and head of the Beijing Jintai Law Firm, said: "There are certain deficiencies in the protection and support of the private economy in the current laws, especially a lack of legislation for the development and protection of private enterprises.
Pi has proposed to the two sessions that the law should provide detailed regulations for private economic entities in key areas, such as the protection of property rights, market access, investment and financing, and fair competition.
Pi Jianlong, a CPPCC National Committee member and head of Beijing Jintai Law Firm, said: "There are certain deficiencies in the protection and support of the private sector economy in current laws, especially a lack of legislation.
The first Global Geographical Indications Products Expo will be held from Nov 19 to 21 in Luzhou, Sichuan province, presenting around 1,000 products that are closely associated with places, including bean paste from Pi county and pomegranate from Huili county.
The China Securities Regulatory Commission has approved the exchange's request to merge the Main Board and the SME Board, said Pi Liuyi, deputy director of the commission's department of market supervision.
中国证监会市场监督管理部副主任皮六一表示，证监会已批准交易所关于合并主板和中小板的申请。
The SSE's Main Board and SME Board have played a positive role in serving the real economy, but problems have emerged, including the two boards becoming similar and the Main Board's company structure becoming rigid, Pi said at a news conference.
皮在新闻发布会上表示，沪深交易所的主板和中小板在服务实体经济方面发挥了积极作用，但也出现了一些问题，包括两个板块同质化、主板公司结构僵化等。
It will help optimize the structure of SSE's equity markets and form a pattern whereby the Main Board and the ChiNext focus on different enterprises and complement each other, better meeting the financing needs of enterprises in different development stages," Pi said.
Pi表示，这将有助于优化深交所股权市场的结构，形成主板和创业板关注不同企业、相互补充的格局，更好地满足处于不同发展阶段企业的融资需求。
Dongfeng also unveiled an electric brand, called e pi, and its first model at the auto show as well.
The listing requirements, investment threshold and trading mechanism remain unchanged, while stock codes and abbreviations have been merged, said Pi Liuyi, deputy director of the CSRC's department of market supervision.
According to Pi, the merger will help to form a pattern whereby the main board and the technology-heavy ChiNext at the Shenzhen bourse focus on different industries while complementing each other.
The move will benefit broader opening up in China's stock market, independent financial commentator Pi Haizhou said on his blog.
The decision will also improve the equity incentive scheme for companies which are publicly traded on the domestic market, Pi noted, adding the policy revision will underpin expansion.
The latest move came after Ant Financial signed a partnership agreement last week with Cambodia's Pi Pay, allowing customers to use their Alipay wallets to pay at Pi Pay's point of sale payment systems across Cambodia, marking another step forward in globalization.
As of now, Ant Financial has cooperated with an array of global players; in addition to Cambodia's Pi Pay, Ant Financial is working with Singapore-based payment provider HelloPay and Thailand's Ascend Money in a bid to expand overseas business.