double density recording

Double density disc: A floppy disc which can store twice as much information as its single density counter part.

双倍密度磁碟:能贮存双倍数据的软磁碟。

double penalty-plus-cost system

双倍罚款加堂费制度

DS/DD [Double-Sided and Double Density]

双面双密度[指磁片

The stoma density of diploid is thicher than spur type.

二倍体气孔密度大于三倍体，普通型大于短枝型；

Response of Different Ploidy Winter Wheat to Moisture and Density Conditions

不同倍性冬小麦对水分和密度的响应

Application of Photomultiplier Tube in γ-ray Density Gauge

光电倍增管在γ射线密度计中的应用

Suggested length: 6 typed pages, double-spaced.

建议长度：6张打字页数，双倍行距。

A Double-length Hash Function Based on AES;

一个基于AES的双倍长度Hash函数

DS/HD [Double-Sided and High Density]

双面高密度[指磁片

double frequency spectral density functio

双重频率谱密度函数

double - beam spectrodensitometer

双光束分光光密度计

SS/DD [Single-Sided Double Density]

单面／双密度[指磁片

A private key encryption-decryption algorithm that uses a key that is twice the length of a Data Encryption Standard( DES) key.

一种密钥加密-解密算法，其使用一种两倍于数据加密标准(ES)密钥长度的密钥。

Evidence indicates that the outer core is about twice as dense as the material in the mantle.

有证据表明，外地核的密度约为地幔物质的两倍。

350kHz Frequency-type IGBT Time-Sharing-Density Control Series Resonant Inverter

350kHz倍频式IGBT分时—密度复合控制串联谐振逆变器

Influence of press density on high rate lithium-ion battery

压实密度对高倍率锂离子电池性能的影响

Response of Different Ploidy Wheat to Moisture and Density Conditions

不同倍性小麦材料对水分和密度条件的响应

paid time and a half/double time,ie paid one and a half times/twice the usual rate

付予一倍半[双倍]工资.