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Viscosity and temperature characteristics of the body The viscosity temperature characteristics are expressed by the viscosity index, which is the relative comparison value of the viscosity temperature characteristics of the oil. Viscosity index The viscosity of lubricating oil decreases with the increase of temperature and increases with the decrease of temperature, which is the viscosity temperature characteristic of lubricating oil. Therefore, the report on viscosity must indicate the temperature at the time of the determination.
The viscosity index (VI) is generally used to evaluate the viscosity and temperature characteristics of oils, which is also an important quality index of lubricating oils. Viscosity index (vi) = (l-u) (l-h) 100 l-the same as the kinematic viscosity of the petroleum product at 100, while the kinematic viscosity of the petroleum product with zero viscosity index is 40, mm2 s; u-The kinematic viscosity of the petroleum product at 100 for which the viscosity index is calculated, mm2 s; h- The kinematic viscosity of petroleum products with the viscosity index is the same at 100, while the kinematic viscosity of petroleum products with viscosity index of 100 is at 40, mm2 s;
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Fancies.
wàng méi zhǐ kě
Interpretation] want to eat plums; outflow of saliva; I will not be thirsty. The metaphor is that wishes cannot be fulfilled; Comfort yourself with fantasies.
Utterance] Yuan Jia Zhongming's "To the Jade Comb": "If you want me, you want to quench your thirst." ”
Identify] thirst; Can't write "drink".
synonyms] Draw bread to satisfy hunger.
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Put down the butcher's knife and become a Buddha on the spot Buddhists persuade people to change evil and follow good. It is a metaphor that once a wicked person realizes his sin and is determined to change it, he can still quickly become a good person.
Leaning on the knife Leaning: Leaning. The side of "profit" is the word knife, which means that the pursuit of self-interest is like leaning on the edge of a knife. It is a parable that greed for profit often brings disaster.
Two-faced and three-knife metaphor plays two-faced, one in front and one behind the back.
Horse Lead Knife Lead Knife: A knife made of lead. Crappy horses, unhappy knives. The metaphorical talent is very weak.
Hiding a knife in a smile describes a kind appearance to people, but it is insidious and vicious.
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Assiduous.
zī zī bù juàn
Interpretation] diligent and diligent; Tireless (diligent: diligent).
Language] "Dongguan Hanji: The Biography of Lu Pi": "Lu Pi; Word Shuling; Sex is deep and studious; Tireless. ”
Orthophony] No; It cannot be pronounced as "bú".
Identification] Zi; You can't write "change".
synonym] waste sleep and forget to eat, work tirelessly, rub the top and let go of the heel, be angry and forget to eat, and be tireless [antisense] idle and full of food all day long.
Usage] with positive connotations. It is generally used as a predicate and an adverbial.
Structure] is more formal.
Example sentence] He has been like a day for three years; Hammer away at; Of course, my academic performance is much better than others.
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On one’s last legs.
yǎn yǎn yī xī
Interpretation] Dying: the appearance of a weak breath; Breath: The breath that comes in and out when you breathe. Only a faint breath remained. By extension, it means that things are about to die or be destroyed.
Speech] Ming Feng Menglong's "Chronicles of the Eastern Zhou Dynasty": Chapter 87: "King Hui went to inquire about the disease; Seeing that the acne is already severe; On one’s last legs. ”
Zhengyin] 奄; It cannot be pronounced as "yān"; One; It cannot be pronounced as "yì".
Identification] 奄; It cannot be written as "drowned" or "covered".
synonym] breath is dying, precarious, life is on the eve [antisense] vigorous and vigorous, vigorous [usage] with a derogatory meaning. It is mostly used for people who are about to die; It is also used for animals and things that are about to die. It is generally used as a predicate, a definite, and a complement.
Structure] is more formal.
It led to the word fan of Taihu Lake in today's empty and lost period.
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