查询词典 PFD

Those using video are encouraged to use one of the Global Positioning System video time inserters, such as the Kiwi OSD by PFD systems ( http://www.pfdsystems.com ) in order to link specific Baily's bead events with lunar features.

那些使用影像机的人们被鼓励去使用一种GPS录像时间插件，例如Kiwi OSD。附件：您需要登录才可以下载或查看附件。没有帐号？加入超大

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

摄动有限差分方法在微分方程的差分近似中，离散微商项的同时，也离散非微商项，把非微商项摄动展开成网格步长△x的幂级数，并通过提高差分格式相应修正微分方程误差阶的方法求出摄动幂级数系数，从而获得高精度差分格式。

SAFETY FIRST: Since you will be by water, all children should wear a life preserver (PFD or Personal Flotation Device).

安全第一。只要在水边，孩子们都应该穿上救生衣。

The modeling strategy of mixed PLL is put forward, and an nonlinear model of the advanced PFD is achieved.

提出了数模混合锁相环的建模思想，建立了改进型电压泵PFD的非线性模型。

The conditions of rabbits′ retina were observed under ophthalmoscope every day after injection.

结论微量的PFD存在于眼内，视网膜可出现超微结构的病理改变，但无显微结构的变化，在宏观上也无任何改变。

The conditions of rabbits＇ retina were observed under ophthalmoscope every day after injection.

方法将100μl的PFD及BSS液体分别直接注射到家兔视网膜表面。

It can be more reliable if P-aminobenzoic acid absorbing test is also performed to eliminate the intestinal, hepatic, and renal factors in PABA absorption and excretion.The authors used the combined method of PFD and PABA to study the pancreatic exicrine function in 32 cases of s...

本研究并用PFD试验和PABA吸收试验对32例SLE患者和16例 DM 患者胰外分泌功能进行测试，胰外分泌功能低下者：SLE为9.4％； DM 为18.8％，且早期无明显腹部症状，故对其胰病变的早期诊断是必要的。

Summariness introduce know clearly on-chip low noise digital PFD, programmable referenceFrequency divider, multiplexer, programmable A and B counter, the dual-modulus prescaler, both 5 bit A and 13 bit B counters, etc.

简要介绍了芯片内低噪声的数字PFD、可编程的参考分频器、多路调制器、可编程A和B计数器、双模式充电泵、5位的A和13位的B计数器等部分。

If the minimum pulse of the PFD is too wide, the PLL has a longer lock time.

如果PFD的最小脉冲太宽，则PLL具有较长的锁定时间。

In addition, the WDK has been enhanced by annotating all kernel header files for PFD support.

另外，通过对核心头文件添加注释，WDK大大强化了对PFD的支持。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。