Search results
Results from the WOW.Com Content Network
Portable, or field pH meters, are handheld pH meters that are used to take the pH of a sample in a field or production site. [19] In-line or in situ pH meters, also called pH analyzers, are used to measure pH continuously in a process, and can stand-alone, or be connected to a higher level information system for process control. [20]
Từ điển bách khoa toàn thư Việt Nam (Encyclopedia of Vietnam), a state-sponsored encyclopedia which was published in 2005. Vietnamese Wikipedia, a project of the Wikimedia Foundation. Vietnam War encyclopedias. Encyclopedic works and encyclopedias focused on Vietnam War-related topics.
A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...
Originally, many thước of varying lengths were in use in Vietnam, each used for different purposes. According to Hoàng Phê (1988), [1] the traditional system of units had at least two thước of different lengths before 1890, [2] the thước ta (lit. "our ruler") or thước mộc ("wooden ruler"), equal to 0.425 metres (1 ft 4.7 in), and the thước đo vải ("ruler for measuring ...
The Vietnamese Wikipedia initially went online in November 2002, with a front page and an article about the Internet Society.The project received little attention and did not begin to receive significant contributions until it was "restarted" in October 2003 [3] and the newer, Unicode-capable MediaWiki software was installed soon after.
The 13th Politburo of the Communist Party of Vietnam (CPV), formally the 13th Political Bureau of the Central Committee of the Communist Party of Vietnam (Vietnamese: Bộ Chính trị Ban Chấp hành trung ương Đảng Cộng sản Việt Nam Khoá XIII), was elected at the 1st Plenary Session of the 13th Central Committee (CC) in the immediate aftermath of the 13th National Congress.
It indicates which letter tone marks in general are added to, largely according to the "new style" rules of Vietnamese orthography as stated in Quy tắc đặt dấu thanh trong chữ quốc ngữ. In practice, not all these rimes have real words or syllables that have the nặng tone. The IPA representations are based on Wikipedia's ...
Pages for logged out editors learn more. Contributions; Talk; Từ điển bách khoa toàn thư Việt Nam