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A jewel bearing is a plain bearing in which a metal spindle turns in a jewel-lined pivot hole. The hole is typically shaped like a torus and is slightly larger than the shaft diameter. The jewels are typically made from the mineral corundum , usually either synthetic sapphire or synthetic ruby .
Nguyễn Hải Dương (born in Phong Điền District in Thừa Thiên Huế province on 15 April 1943) pen name and political name Nguyễn Khoa Điềm is a Vietnamese poet and government literary official. [1] [2] [3] He graduated from Hanoi National University of Education. [4] His work is included in the book, Six Vietnamese Poets. [5]
A model attribution edit summary is Content in this edit is translated from the existing Vietnamese Wikipedia article at [[:vi:Tên người Việt Nam]]; see its history for attribution. You may also add the template {{Translated|vi|Tên người Việt Nam}} to the talk page. For more guidance, see Wikipedia:Translation.
The lower jewel is called the 'hole jewel', the upper one is the 'capstone' or 'end jewel'. This type of bearing is used in watches where friction is critical, such as in the balance wheel pivots. With ordinary bearings (shown in Watch jewel bearing.svg ), when the watch is vertical the shoulder of the shaft bears against the face of the hole ...
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During the Vietnam War, the University of Civil Engineering was evacuated to Huong Canh, Vinh Phuc province. After peace was restored, in 1982, the school began planning to move back to Hanoi. At the end of 1983, the school officially moved back to Hanoi but was dispersed in four different locations: Co Nhue, Phuc Xa, Bach Khoa and Dong Tam.
Hanoi University of Mining and Geology (Vietnamese: Trường Đại học Mỏ - Địa chất Hà Nội) is a university in the Bắc Từ Liêm district of Hanoi, the capital of Vietnam. It trains technical experts in exploration and exploitation of natural resources; in protection of mining and the geological environment; and to be a center ...
Nguyễn Thái Học, founder and leader of the VNQDD, 1930. Nguyễn Thái Học (Vietnamese pronunciation: [ŋwiən˦ˀ˥ tʰaːj˧˦ hawk͡p̚˧˨ʔ]; chữ Hán: 阮 太 學; 1 December 1902 – 17 June 1930) was a Vietnamese revolutionary and independent activist who was the founding leader of the Việt Nam Quốc Dân Đảng, namely the Vietnamese Nationalist Party.