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然而，传统费托合成制烯烃工艺通常需在300摄氏度以上高温和超过2兆帕的压力环境下进行，能源消耗与生产成本较高。此外，在温和条件下，现有反应系统普遍面临转化率与低碳烯烃选择性之间的制约矛盾——随着转化率上升，低碳烯烃的选择性往往大幅降低，导致在高转化率（超过60%）情况下难以维持高选择性。
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Remember to consult the most recent fantasy lineup recommendations along with Sunday's MLB wagering insights.April 4: Saturday morning's essential updatesBrendan Donovan's physical condition might trigger cascading effects for the Mariners. Joe Nicholson-Imagn ImagesSaturday introduces bonus baseball, as Friday's scheduled game between the Kansas City Royals and Milwaukee Brewers was postponed and will be played today as part of a day-night doubleheader. The 16-game lineup begins at 1:10 p.m. ET with the St. Louis Cardinals facing the Detroit Tigers.Seattle Mariners' Brendan Donovan departed last night's game in the seventh inning after stumbling over first base while running out a ground ball. Leo Rivas took over at third base, and Donovan's status remains undetermined. Should he require absence, Rivas could continue filling in, or the Mariners might activate top prospect Colt Emerson, who recently signed an eight-year, $95 million contract extension.Juan Soto left last night's game in the opening inning with calf soreness. The injury occurred during his attempt to advance from first to third. His participation in tonight's New York Mets road game against the San Francisco Giants is questionable.The Mets were already short-handed with Jorge Polanco missing last night's game due to Achilles discomfort. He had been restricted to designated hitter duties, but was unable to play last night. If Polanco remains sidelined, Mark Vientos and Brett Baty would help cover the gap.The Giants also operated with limited personnel after Casey Schmitt was scratched with back tightness. With Rafael Devers confined to designated hitter, Jerar Encarnacion started at first base. Schmitt is currently day-to-day.Byron Buxton was forced from last night's game in the seventh inning after being hit by a pitch on the forearm. X-rays came back negative, resulting in a bruise diagnosis. James Outman replaced him last night and might see increased playing time if Buxton cannot participate in today's afternoon game between the Minnesota Twins and Tampa Bay Rays.The Chicago Cubs placed Cade Horton on the 15-day IL after he left Friday's game with a forearm issue. The extent remains unknown, but he is scheduled for imaging this weekend. Ben Brown emerges as the leading contender for the rotation vacancy.The Arizona Diamondbacks placed Jordan Lawlar on the 10-day IL following a diagnosis of a fractured right wrist. The rookie was hit by a pitch on Thursday and is anticipated to miss six to eight weeks. Tim Tawa and Jorge Barrosa are poised for expanded roles.The Houston Astros will be missing Isaac Paredes for their weekend series against the Athletics. He was placed on bereavement leave on Friday. Despite not having a fixed position, Paredes appeared in six of the Astros' initial eight games, though he had been benched for two of the previous three games before last night's AL West contest.Masyn Winn exited last night's game in the seventh inning with left hip tightness. The injury seemingly occurred during his sprint to first base in the fifth inning. JJ Wetherholt began the game on the bench but entered to play second base, with Thomas Saggese shifting to shortstop.
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