TransformStream creates a readable/writable pair with processing logic in between. The transform() function executes on write, not on read. Processing of the transform happens eagerly as data arrives, regardless of whether any consumer is ready. This causes unnecessary work when consumers are slow, and the backpressure signaling between the two sides has gaps that can cause unbounded buffering under load. The expectation in the spec is that the producer of the data being transformed is paying attention to the writer.ready signal on the writable side of the transform but quite often producers just simply ignore it.
华泰证券指出，中东紧张局势骤然升级，或引发原油、天然气、丙烷、甲醇、尿素等多种能源化工品供应风险。霍尔木兹海峡短期运输受阻风险或显著提升，25年通过该海峡出口的商品运输量在全球份额的占比高的分别为化肥33%、甲醇32%、原油及凝析油31%、NGLs（包括乙烷、丙烷、丁烷等）23%、LNG 19%及矿石（17%），相关产品价格中枢或抬升。考虑原油地缘溢价、全球供需格局及OPEC+闲置产能，上调26年Brent均价预测为70美元/桶（前值65美元/桶）。油气开采、煤化工、炼化行业均有望受益。
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Despite black men having twice the risk of prostate cancer, it said there should be no screening for black men due to "uncertainties" around its impact, and a lack of evidence from clinical trials in these men.