您要查找的是不是：
- The PGA consists of the differential amplifier with variable source degeneration resistor and the DC-offset correction circuit. 该可编程增益放大器采用源极反馈电阻可变的差分放大器结构,且带有直流漂移校正电路。
- A fifth galactic source (unidentified), just above the center of the galactic plane, is intriguing because it is a variable source and has no clear counterpart at other wavelengths. 排在第五名的恰好位于银河盘面中心上方的星系伽马源（未命名）显得很诡异，因为它是在一个在其他波段没有清晰对应物的变伽马源。
- Thispermits the LS 4 to control utility feeder breakers with one fixedsource and one variable source, or tie breakers between busses with twovariable sources. 这将允许ls的四管制公用事业接驳式破碎机与一个固定的来源和一个变量的来源，或配合断路器之间的总线与两个变量的来源。
- The news comes from a reliable source. 这消息来自可靠的来源。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- VBR-NRT? Variable Bit Rate Non Real Time? 非实时可变比特速率?
- A constant, variable, function name, or expression. 一种常数、变量、函数名或表达式。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- The prices are variable, shop around by all means. 价格高低不一，所以一定要货比三家逐店选购。
- The temperature was a variable in the experiment. 在该实验中温度是个变量。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- A finite increment in a variable. 变量增量变量的有限增量
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- Winds are mainly light and variable. 风力较弱，风向多变。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- I had had a few beers and was completely non compos mentis. 我喝了些啤酒就头昏脑胀了。
