the immigration act of 1924 created a permanent quota system. the act transferred "individual selection" to "group selection" .

1、

competition for survival or survival of the fittest is the individual selection and group selection of the unity of opposite process.

在于自然界生存竞争即适者生存过程中个体选择与群体选择的对立统一。

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2、

any of the distinct grooves on a long-playing phonograph record that contains an individual selection or a separate section of a whole.

凹槽：慢速照片上任何清晰的纹路，该照片包含个别选择或整体中一部分。

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3、

detection of infective agent from blood and plasma derivatives

血液及血制品感染因子检测

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4、

contiguous safe time and safe distance to infective agent of ibv still need to be further studied.

与IB传染源接触的安全时间与安全距离则有待更深入的研究。

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5、

a nitrate used in making photographic emulsions; also used in medicine as a cautery and as a topical anti-infective agent.

一种用于摄影用感光乳剂的硝酸盐，也用作医学上的烧灼剂和局部抗感染剂。

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6、

the ability of the infective agent to survive in man's environment is an important factor in the epidemiology of the infection.

感染因子在人体环境中的存活能力是传染病流行病学的一个重要因素。催眠术中最重要的因素是暗示感应性。

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7、

effects of orthodontic force on mek in rat pulpal tissue

矫治力作用下大鼠牙髓组织中MEK的变化

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8、

to cure osseous crossbite using orthodontic force appliance

应用矫形力治疗骨性反颌

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9、

the orthodontic force by composite archwire on the individual malocclusion tooth

复合矫治弓丝矫治错位牙的受力分析

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10、

study stability and osseous reaction of implant anchorage after received orthodontic force

种植体支抗受正畸力系作用后的骨组织反应及其稳定性研究

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11、

the animal experiment on the stability of mini-screws anchorage implant under different orthodontic force

不同受力条件下微螺钉支抗种植体稳定性的动物实验研究

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12、

but for the gently periodontal disease which have no treatment can "t be moved with the normal orthodontic force. "

而未经治疗的轻度牙周炎不能进行正常力值下的牙齿移动。

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13、

this idea emerged from reports that high wine consuming countries like france report fewer deaths from heart disease.

这个想法的根据是来自于葡萄酒消耗大国的报告，比如法国。

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14、

loads the indicated object or primitive type from the archive.

由归档文件装载确定的对象或主要类型。

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15、

stores the indicated object or primitive type to the archive.

把确切的对象或主要类型存储到归档文件中。

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16、

idea and practice of judicial control to death penalty

死刑司法控制的观念与实践

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17、

the reexamination and reconstruction of the chinese judicial control of the torture

我国法庭治理刑讯逼供之反思与重构

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18、

on judicial control of the investigator power

论我国刑事侦查权的司法控制

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19、

research on judicial control of pretrial detention

对审前羁押的司法控制问题的研究

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20、

judicial control of administrative action

应当与对行政行动的司法控制

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