Question: What did the second line of development use?
About the article "Manhattan Project", section "Plutonium".

Candidate passages:
The expansion of the railway in the late 1870s helped to develop Gippsland.
It enabled milk from western Gippsland to be sold fresh into Melbourne while the dairy industry of East Gippsland provided cheese and butter.
It also enabled development of west Gippsland's market gardening and orcharding industry for sale in Melbourne markets.
It also encouraged the development of a tourism industry notably at Lakes Entrance.
It did however end coastal shipping traffic and the use of Sale and Bairnsdale as ports.
In the 1920s, the Gippsland railway played an important role in developing the mining of lignite coal and the development of the Latrobe Valley for power generation primarily serving Melbourne and Victoria.
This saw the development of industry in towns such as Yallourn, Morwell, Traralgon, Moe, Warragul and Drouin.
The development of the Gippsland Railway helped fuel the Melbourne land boom in the 1870s.
The original departure point for the railway was Oakleigh with the line connecting Oakleigh and Melbourne not built until 1879.
The Victorian railways bought land in Oakleigh for use as workshops.
Oakleigh became a centre of what was known as "railway fever" as developers developed and marketed houses close to rail lines between Oakleigh and other suburbs for use of workers travelling to and from their job.
At the height of the land boom in 1888, land sales were being held two or three times a week in the district.
The collapse of the land boom in 1889 eventually contributed to banking collapses in 1893 and the major depression of the 1890s.
The Gippsland railway remains a significant passenger corridor on the V/Line network although its use for freight business has now declined to only one major customer, being Australian Paper's export traffic from Maryvale 
In many languages, including modern European languages and Arabic, poets use rhyme in set patterns as a structural element for specific poetic forms, such as ballads, sonnets and rhyming couplets.
However, the use of structural rhyme is not universal even within the European tradition.
Much modern poetry avoids traditional rhyme schemes.
Classical Greek and Latin poetry did not use rhyme.
Rhyme entered European poetry in the High Middle Ages, in part under the influence of the Arabic language in Al Andalus (modern Spain).
Arabic language poets used rhyme extensively from the first development of literary Arabic in the sixth century, as in their long, rhyming qasidas.
Some rhyming schemes have become associated with a specific language, culture or period, while other rhyming schemes have achieved use across languages, cultures or time periods.
Some forms of poetry carry a consistent and well-defined rhyming scheme, such as the chant royal or the rubaiyat, while other poetic forms have variable rhyme schemes.
Most rhyme schemes are described using letters that correspond to sets of rhymes, so if the first, second and fourth lines of a quatrain rhyme with each other and the third line does not rhyme, the quatrain is said to have an "a-a-b-a" rhyme scheme.
This rhyme scheme is the one used, for example, in the rubaiyat form.
Similarly, an "a-b-b-a" quatrain (what is known as "enclosed rhyme") is used in such forms as the Petrarchan sonnet.
Some types of more complicated rhyming schemes have developed names of their own, separate from the "a-b-c" convention, such as the ottava rima and terza rima.
The types and use of differing rhyming schemes is discussed further in the main article. 
DTSS implemented an early integrated development environment (IDE): an interactive command line interface.
There was no need to log out.
If users did not respond, they were logged out after a short delay.
Any line typed in by the user, and beginning with a line number, was added to the program, replacing any previously stored line with the same number; anything else was assumed to be a DTSS command and immediately executed.
Lines which consisted solely of a line number weren't stored but did remove any previously stored line with the same number.
This method of editing was necessary due to use of teleprinters as the terminal units for the Dartmouth Timesharing system. 
One of the final influences on the development of early jazz, specifically its drumming and rhythms, was Second line drumming.
The term "Second line" refers to the literal second line of musicians that would often congregate behind a marching band playing at a funeral march or Mardi Gras celebration.
There were usually two main drummers in the second line: bass drum and snare drum players.
The rhythms played were improvisatory in nature, but similarity between what was played at various occasions came essentially to a point of consistency, and early jazz drummers were able to integrate patterns from this style into their playing as well as elements from several other styles. 
2013.1, China Gerui Advanced Materials Group Limited introduced a new laminated steel processing line and was estimated to put into use in the second quarter of 2013.
The new processing line was focused on markets of food and beverage packaging, electrical appliances, and construction and decorations.