美國中止向中國供應C919關鍵技術

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Generate an ultra-realistic, highly ultra-detailed, 8k resolution with 1080x1080 pixel portrait of me using the uploaded image for reference (preserved the likeness and the original face for reference) of a captivating studio portrait of a woman with long, wavy brown hair, seated gracefully on a stool in a thoughtful pose. She is wearing a long, flowing red gown with a one-shoulder design and a thigh-high slit, exuding elegance and sophistication. Her head is slightly tilted, with one hand gently resting on her chin. One leg is slightly extended, revealing a delicate ankle bracelet. Her makeup is polished and natural, featuring defined eyebrows, subtle eyeshadow, mascara, and a berry-toned lipstick. She wears delicate earrings and a gold bracelet that add a touch of sparkle to her overall look. The lighting is soft and diffused, creating a warm and flattering effect that emphasizes her beauty and the flowing lines of the gown. The background is a plain, brown, providing a warm and neutral backdrop. *** The composition is a full shot, capturing her from head to toe, framed vertically to accentuate her height and the flowing lines of the gown. The model is positioned in the center of the frame, creating a balanced and harmonious composition. The overall style is classic, elegant, and timeless, reminiscent of portrait photography, evoking a sense of grace, sophistication, and enduring beauty.
Create a hyper-realistic 8K close-up body portrait of a female model, using the uploaded photo as the exact facial reference. Maintain 100% accuracy of the facial features — do not alter or modify any aspect of the face. Render the skin texture, lighting, and overall composition with photo-realistic detail, ensuring lifelike color tones and natural depth of field. A man with his original hair is sitting casually on a white cube, smiling warmly at the camera. He is wearing a cream-colored cable-knit sweater, blue jeans, and brown loafers. His legs are crossed, with one hand resting on his knee.
The background reveals a cozy and festive living room. A large, beautifully decorated Christmas tree with numerous warm lights and gold ornaments stands prominently behind him. Several wrapped gift boxes are visible at the base of the tree. To his left, another smaller decorated Christmas tree and a wreath on the wall further enhance the holiday atmosphere. The lighting is soft and inviting, creating a warm and welcoming scene.
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keep 100 percent facial information adherence of the attached image and turn her into a girl standing beneath autumn leaves outside a traditional wooden structure in a live action photograph or movie still, wearing a complex suggestive outfit that harmonizes with the warm fall tones.

Shot and Camera
Three quarter shot at slightly low height, framing her off center to the right so the yellow leaves and carved wooden panels dominate the left. Maintain the intimate close framing and vertical orientation feel of the reference.

Identity and Pose
Preserve her age read, build, silhouette, hairstyle length, and skin tone. She leans lightly against the doorframe, one hand grazing a hanging leaf, her posture relaxed and candid, 8k Photorealistic and hyper realistic.

Lighting and Environment
Soft warm daylight filters through the leaves, casting dappled highlights on her hair and outfit. Ground her feet on aged wooden flooring with natural grain, faint scuffs, and subtle contact shadows.

Masking and Constraints
Change only wardrobe and placement while keeping lighting, perspective, white balance, pose, face geometry, body proportions, and silhouette the same. Absolutely no added text, no CGI look, no plastic skin, no floating feet, with consistent perspective and correct contact shadows.

美國暫停向中國航空製造商COMAC出售部分關鍵技術

美國已暫停向中國國有航空製造商中國商飛(COMAC)銷售部分關鍵技術,包括與噴氣發動機相關的技術,據《紐約時報》周三報道。

報道援引兩名知情人士透露,此舉是回應中國近期對美國出口關鍵礦產的限制。美國商務部已暫停部分許可證,這些許可證原本允許美國公司向中國商飛出售產品和技術,以協助其開發C919客機。

目前,商務部及中國駐美大使館尚未對此置評。

C919客機雖然在中國製造,但許多零件來自海外,其中包括由通用電氣航空(GE Aerospace)及法國發動機製造商賽峰(Safran)合作生產的LEAP發動機。通用電氣航空暫未回應相關查詢。

C919旨在與空中巴士(Airbus)及波音(Boeing)等主流機型競爭,該機於2022年獲得中國國內安全認證,並於2023年開始在中國境內投入服務。目前,C919僅在中國及香港境內飛行。

2020年,特朗普政府首次批准通用電氣供應C919發動機的許可。當時,特朗普表示:「我希望中國購買我們的噴氣發動機,世界上最好的發動機。我希望讓與美國做生意變得容易,而非困難。」

通用電氣於2014年獲得LEAP發動機的出口許可。

編輯評論與分析

這次美國暫停部分關鍵技術銷售給中國商飛,反映了中美科技與貿易競爭日益激烈的現實。C919作為中國自主研發的窄體客機,象徵著中國在航空製造領域挑戰西方巨頭的決心。美國此舉無疑是在試圖遏制中國在高端製造業的崛起,尤其是在關鍵技術和零部件供應鏈上的依賴。

然而,這種技術出口管制同時也暴露出中國航空業仍需依賴外國核心技術的現狀。LEAP發動機作為C919的重要組件,來自美法合資企業,顯示中國在高性能發動機製造方面仍有待突破。美國的限制可能促使中國加快自主研發步伐,尋求替代方案,長遠來看,這樣的政策或許會加劇技術脫鉤,並推動中國航空產業鏈的本地化。

此外,特朗普時期對技術出口持開放態度,反映出當時希望通過商業合作促進中美關係,但如今的政策轉向則體現了美國對中國崛起的警惕與防範。這種政策搖擺也讓國際企業在中美兩大市場間的抉擇更加複雜。

對香港讀者而言,C919目前只在中國及香港航線運營,未來若能突破技術和政治壁壘,或許會帶來更多飛機選擇,對本地航空業發展及旅客體驗帶來影響。整體來看,這場技術與貿易的角力,正深刻改寫全球航空產業的格局,也提醒我們關注科技自主權與國際合作的平衡。

以上文章由特價GPT API KEY所翻譯及撰寫。

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