The phrase "a second portion of" is correct and usable in written English.
It can be used when referring to an additional part or segment of something that has already been mentioned or provided.
Example: "After reviewing the first portion of the report, we will now discuss a second portion of the findings."
Alternatives: "an additional part of" or "a further segment of".
If he is found guilty, a second portion of the trial would determine if he will be sentenced to death.
A second portion of the cremated remains of Gene Roddenberry, creator of "Star Trek," is scheduled for a trip into the great unknown together with those of his wife, Majel Barrett Roddenberry, The Associated Press reported.
A second portion of the trial, Master 2, will compare the T-wave's performance as a predictor of seizures in patients who did not get defibrillators with the group that did get the implants.
This week, Mr. Papandreou is struggling to persuade his increasingly disruptive party members that Greece must agree to another round of austerity measures to qualify for a second portion of loans from the European Union and the International Monetary Fund.
A second portion of the process involves repacking — essentially moving and squeezing together the remaining airwaves so they occupy a smaller portion of the spectrum band, known as UHF.
But last week, Mr. Ackermann's comments seemed prescient as Prime Minister George A. Papandreou of Greece struggled to persuade Parliament and the public that the nation must agree to more austerity measures to qualify for a second portion of loans from the European Union and the International Monetary Fund.
The reaction mixture was denatured and reannealed again, and a third portion of Endo IV was added.
A first portion of dexamethasone appeared shortly after the injection, indicating a small fraction of free DXM-P or drug associated with the outer layer of the liposomes.
Six patients with a tumor in the second portion of the duodenum underwent the Whipple procedure, and the other 7 patients with isolated tumors underwent local excision.
A colonoscopy and an esophagogastroduodenosopy (EGD) to the second portion of the duodenum were performed revealing three small tubular adenomas of the colon and helicobacter pylori gastritis.
Kaveh Golestan's 1979 Prostitute series, which captured life within Shahr-e No, or New City, Tehran's former red light district, provides a bitter taste of the second portion of Unedited History.
