名词解释题
发布日期:2022-07-05
近亲裸腹蚤属于双甲目,裸腹蚤属,裸腹蚤科
剪裂缝(剪节理) 是指由剪切应力形成的裂缝。其特点为: 裂缝面闭合,平直光滑,可有少量擦痕; 裂缝面可切割岩层内颗粒; 成对出现,呈共轭“X”形,其两组剪裂缝的较小交角(约60 度)的平分线方向为最大压应力方向。剪裂缝在褶曲中常见,常是斜交的褶曲轴线或平行褶曲轴线,成对出现。
多面腹是腹的式样之一,也称“多棱腹”。
标签: 裂缝
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Cloze 4 Down-to-earth means someone or something that is honest, realistic and easy to deal with. It is a pleasure to 1 someone who is down-to-earth. A person who is down-to-earth is easy to talk to and acceptsother people as equals. A down-to-earth person is just the 2 of someone who acts important or proud. Down-to-earth persons may be important members of 3 , of course. But they do not let their importance “ 4 to their heads.” They do not consider themselves to be better persons than others of less importance. Someone who is filled with his own importance and pride, 5 without cause, is said to have “his nose in the air.” There is 6 way a person with his nose in the air can be down-to-earth. Americans 7 another expression that means almost the same as “down-to-earth.” The expression is both-feet-on-the-ground. Someone 8 both-feet-on-the-ground is a person with a good understanding of reality. He may have dreams, 9 he does not allow them to block his knowledge of 10 is real. The opposite kind of person is one who has his “head-in-the-clouds. ” A man with his head-in-the-clouds is a 11 whose mind is not in the real world. 12 such a person can be brought back to earth. Sharp words from a teacher can usually 13 a day-dreaming student down-to-earth. Usually, the person who is down-to-earth is very likely to have both feet on the ground. 14 we have both our feet on-the-ground, when we are down-to-earth, we act honestly and openly 15 others. Our lives are like the ground below us, solid and strong.
体态行为中最有表现力的语言是()。
当财政收入小于财政支出时,财政收支差额为负值,称为财政赤字。
压缩比为6.0~8.0的汽油机应选用90号汽油;压缩比为8.0以上的汽油机应选用93号或97号汽油。
男,30岁。发热,右大腿肿痛8天,体温达39.2℃。查体:右大腿外侧肿、压痛,诊为肌肉内感染。其临床上切开引流的指征是()。
下列疾病常出现阵发性腹痛的是()。
有关《魏律》的不正确说法是( )。
止付按方式不同分().
肱骨外科颈骨折易损伤腋神经,导致()瘫痪。
为了平衡波倾角为θ的波浪所作用于船舶的横摇力矩,减摇装置的减摇力矩必须()横摇力矩,通常将其最大减摇力矩所能克服的(),作为衡量减摇装置能力的标志。
裂缝有()、横向裂缝、龟纹裂缝之分。
在斜裂缝出现前,箍筋中的应力就很大,斜裂缝出现后,与斜裂缝相交的箍筋中的应力突然减小,起到抵抗梁剪切破坏的作用。
在斜裂缝出现前,箍筋中的应力就很大,斜裂缝出现后,与斜裂缝相交的箍筋中的应力突然减小,起到抵抗梁剪切破坏的作用。
对于轨道板预裂缝处裂缝、支承层裂缝、桥梁地段底座板(含后浇带)混凝土裂缝、轨道板间连接部位离缝等伤损,严禁在()进行注浆修补作业。
对于轨道板预裂缝处裂缝、支承层裂缝、桥梁地段底座板(含后浇带)混凝土裂缝、轨道板间连接部位离缝等伤损,严禁在()进行注浆修补作业。
发现裂缝后,应确定裂缝的()。
裂缝产生裂缝产生的原因?
裂缝的堵法()
裂缝的堵法()。
地裂缝