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Profile of a spur gear Notation and numbering for an external gear Notation and numbering for an internal gear. The tooth surface (flank) forms the side of a gear tooth. [1] It is convenient to choose one face of the gear as the reference face and to mark it with the letter “I”. The other non-reference face might be termed face “II”.
See Mask for a fuller list of masks. Balaclava (helmet) or ski mask; Battoulah; Bongrace – a shade for the face, sometimes part of a hood, or a separate garment worn with a hood or coif; Tudor/Elizabethan; Boushiya; Burqa, also burka, burga, burqua; Diving mask; Full-face diving mask; Gas mask; Orthodontic facemask
There are different types of boxing headgear available. Some headgear is open-faced. This is the style normally used in amateur boxing competitions. Unlike open-faced headgear, training headgear covers the cheek. "Face-saver" headgear features a pad across the face so that no direct contact is made to the face.
The following is a partial list of the "A" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). Codes following these are found at List of MeSH codes (A02). For other MeSH codes, see List of MeSH codes. Authoritative sources for this content are the MeSH Browser [1] and MeSH SPARQL ...
The following is a partial list of the "A" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). Codes following these are found at List of MeSH codes (A03). For other MeSH codes, see List of MeSH codes. Authoritative sources for this content are the MeSH Browser [1] and MeSH SPARQL ...
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The following is a partial list of the "V" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). This list continues the information at List of MeSH codes (V01). Codes following these are found at List of MeSH codes (V03). For other MeSH codes, see List of MeSH codes.
The following is a list of "L" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM). This list continues the information at List of MeSH codes (K01). Codes following these are found at List of MeSH codes (M01). For other MeSH codes, see List of MeSH codes.