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peristaltic

a. 蠕动的

蠕动的

The Collaborative International Dictionary of English v.0.48 (gcide)

Peristaltic \Per`i*stal"tic\, a. [Gr. ? clasping and
compressing, fr. ? to surround, wrap up; ? round ? to
place, arrange: cf. F. p['e]ristaltique.] (Physiol.)
Pertaining to a wormlike wave motion of the intestines, and
by analogy, of other flexible tubular structures. In the body
it is produced by a progressive contraction of the muscular
fibers of their walls, forcing their contents onwards in the
direction of the wave; as, peristaltic movement. --
{Per`i*stal"tic*al*ly}, adv.
[1913 Webster]

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英文字典中文字典相关资料:

MAGNESIUM OXIDE (FUME)† - Occupational Safety and Health Administration
ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) Magnesium oxide See annual publication for most recent information
MAGNESIUM OXIDE - ACGIH
To view TLV and Documentation, you must be logged in as an ACGIH member or have previously purchased the documentation
SAFETY DATA SHEET - Fisher Sci
Food, drug, pesticide or biocidal product use 2 Hazard(s) identification This product is not considered hazardous by the US OSHA Hazard Communication Standard 2024 (29 CFR 1910 1200) 3 Composition information on Ingredients Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes Get medical attention
Magnesium oxide fume - IDLH | NIOSH | CDC
Basis for original (SCP) IDLH: The available toxicological data contain no evidence of an IDLH for magnesium oxide fume, because the symptoms of metal fume fever would not impede escape or cause any irreversible health effects within 30 minutes
Material Safety Data Sheet Ingredients Composition
Material Safety Data Sheet Magox Premium CAS # 1309-48-4 Chemical family: inorganic oxide A very reactive chemical grade magnesium oxide
Toxic Screening Level Justification for 1309-42-8
The ACGIH TLV for magnesium oxide is set at 10 mg m3 The TLV is comparable to the TLV for nuisance particles, and is also believed to be protective, with an unknown margin of safety for producing adverse health effects - irritation of eyes and nose, and the symptoms of metal fume fever
Substances and Agents Listing - ACGIH
ACGIH has publications in many different areas that fit your needs in your field
MAGNESIUM OXIDE - Bri-Chem Supply
Avoid contact with water; product reacts exothermically with water to form magnesium hydroxide and heat steam Water contact in closed or restricted storage vessels may cause heat, swelling and possible rupture of storage vessel
1988 OSHA PEL Project - Magnesium Oxide | NIOSH | CDC
OSHA’s former limit for magnesium oxide (as fume) was 15 mg m 3 as an 8-hour TWA, the Agency’s generic limit for particulates The ACGIH has a TLV-TWA limit of 10 mg m 3 for the fume of this white, odorless, very fine powder
Permissible Exposure Limits – OSHA Annotated Table Z-1 | Occupational . . .
ACGIH ® has established TLVs ® for compounds not included in the OSHA Z Tables Please see ACGIH ® Documentation for additional limits, skin absorption and other designations, and explanations

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