无法生存
发表于 2025-3-21 18:59:18
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健谈的人
发表于 2025-3-21 22:58:33
Concrete,ater or sand makes no difference, but a concrete foundation for a multistorey building must be designed down to the last detail, and the civil engineers and technologists of today are very familiar with the intricacies of such a problem.
虚构的东西
发表于 2025-3-22 01:29:32
Estimation in Nonparametric Models,e familiar and ominous buzzing sound. Vibration of the vocal cords produces the sound we know as speech. The crack as a batsman hits the cricket ball is the sound produced by the vibration of the surface layers of the bat. Anything which vibrates tends to cause sound.
escalate
发表于 2025-3-22 08:11:21
Estimation in Nonparametric Models,o the surroundings (figure 12.1). Unless the heat is replenished, the house will get cold, so more fuel is necessary to maintain a reasonable temperature inside. Fuel bills can be reduced somewhat by the introduction of insulating materials such as plastic foams and fibreglass, which delay, but cannot entirely prevent the house losing heat.
羽毛长成
发表于 2025-3-22 08:51:19
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公理
发表于 2025-3-22 14:18:17
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Euthyroid
发表于 2025-3-22 17:29:26
Estimation in Parametric Models,All matter is made of atoms (figure 2.1). All atoms are composed of . and ..
Coronary
发表于 2025-3-23 00:39:14
Estimation in Parametric Models,Paint is an extremely useful material applied to protect surfaces and to make them attractive. Surface coatings are found on walls, furniture, cars, pencils, boilers, and so on, and their uses are legion. Paint can be applied to virtually any material: metal, wood masonry, brickwork, plastics, concrete or rubber.
紧张过度
发表于 2025-3-23 01:25:20
Estimation in Parametric Models,Natural stones fall into three groups: . and ..
Abrade
发表于 2025-3-23 05:48:07
Estimation in Nonparametric Models,Timber is the hard fibrous material obtained from trees. Owing to its strength, lightness, durability and wide-ranging availability, it is one of the world’s most important materials, and is ideal for use in the construction industry.