The president said the U.S. and China are "righting the wrongs of the past and delivering a future of economic justice and security for American workers, farmers and families." He added that the deal has "total and full enforceability."

The deal takes steps to root out several practices that irked the White House and bipartisan members of Congress, including intellectual property theft and forced technology transfers, in exchange for Chinese market access, according to text released by the White House. It also details a $200 billion increase in Chinese purchases of U.S. goods over two years — a priority for Trump.

Through the deal, the Trump administration aims to resolve some longstanding American concerns about Chinese trade abuses. However, the accord appears to leave questions about how Washington and Beijing will enforce its terms and prevent further tensions.

President Donald Trump signed a partial trade deal with China on Wednesday as the world's two largest economies try to contain an economic struggle.

Chinese Vice Premier Liu He and US President Donald Trump sign a trade agreement between the US and China in the East Room of the White House in Washington, DC, January 15, 2020.

U.S. stocks rose Wednesday before the deal signing. Trump signed off on the agreement after lengthy remarks dishing on impeachment, golf, his 2016 victory, stock market gains, the Federal Reserve's interest rate policy and July 4 fireworks.

Here are some of the deal's core pieces ( read the full agreement here ):

The president signed the deal as the House prepared to send articles of impeachment to the Senate and kick-start a trial on whether to convict Trump and remove him from office.

Chinese Vice Premier Liu He shakes hands with US President Donald Trump during a signing ceremony for trade agreement between the US and China in the East Room of the White House in Washington, DC, January 15, 2020.

The president thanked administration officials, Republican lawmakers, Republican megadonor Sheldon Adelson, Fox Business Network host Lou Dobbs, former Secretary of State Henry Kissinger and current and former businessmen Steve Schwarzman, Nelson Peltz and Hank Greenberg, among dozens of people he recognized. Chinese officials stood silently next to the U.S. delegation as Trump spoke for nearly an hour before Chinese Vice Premier Liu He delivered a message from Chinese President Xi Jinping.

The Chinese leader called the trade deal "good for China, for the U.S. and for the whole world," according to a translation. He wrote that "in the next step, the two sides need to implement the agreement in earnest."

The phase one agreement marks a major step in efforts to rein in a more than 18-month trade war between Washington and Beijing. Trump has pushed to crack down on what he calls China's abusive trade practices and follow through on one of his core campaign promises.

Investors have looked for signs the U.S. and China want to dial back a tariff crossfire that threatens to wallop the global economy. The deal signed Wednesday brings some welcome relief for businesses that feared the duties — though the bulk of them will stay in place.

"We're leaving tariffs on, but I will agree to take those tariffs off if we are able to do 'phase two.' In other words, we're negotiating with the tariffs," Trump said.

U.S. Trade Representative Robert Lighthizer told reporters Wednesday that the agreement has "real teeth" to address China's trade practices, adding that the U.S. will be able to tell by the spring whether it is enforceable. He said American tariffs on Chinese goods will help the administration enforce the accord.

The U.S. aims to start talks on a second piece of the deal before the presidential election in November, Lighthizer said. Last week, Trump said he "might want to wait to finish 'til after the election, because by doing that, I think we can make a little bit better deal, maybe a lot better deal."

Under the agreement, the Trump administration scrapped tariffs initially set to take effect last month. It also agreed to cut duties on $120 billion in products to 7.5%.

Still, the White House has said it will leave tariffs on another $250 billion in Chinese products in place for now. On Wednesday, Treasury Secretary Steven Mnuchin said a second phase of the agreement that the U.S. hopes to strike could include more tariff relief.

"Just as in this deal there were certain rollbacks, in phase two there will be additional rollbacks," he said, adding that China has "a big incentive to get back to the table and agree to the additional issues that are still unresolved."