查询词典 null function

Lenormand R%Touboul E%Zarcone C Numerical models and experiments on immiscible displacements in porous media 10.1017/S0022112088000953 Fluid Mechanics , 1988,null

曾溅辉%金之钧油气二次运移和聚集物理模拟北京：石油工业出版社， 2000，null

A resistor is connected between the output end of the live wire and the output end of the earth wire, another resistor is connected between the output end of the null line and the input end of the earth wire, a neon lamp in a photoelectric coupling switch is connected at the two ends of the earth wire switch in parallel after being connected with the resistors in series, one end of a light sensitive resistor in the photoelectric coupling switch GR2 is connected with the anode DC+ of an integrated circuit IC power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode D3, the cathode of the diode D3 is connected with the triggering pole of the silicon-controlled rectifier SCR in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

一种防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，所述的火线输出端、地线输出端间连接电阻，所述的零线输出端、地线输入端间串接电阻，光电耦合开关内的氖灯与电阻串联后并联在地线开关两端，光电耦合开关GR2内光敏电阻的一端与漏电保护器内的集成电路IC电源正极DC＋连接、光敏电阻的另一端与二极管D3的正极连接，二极管D3的负极与漏电保护器内的可控硅SCR触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

After being connected with a resistor in series, the primary input end of a transformer is connected with the output end of the live wire and the output end of the null line in parallel, the secondary output end is connected with the two ends of the earth wire switch in parallel after being connected with another resistor in series, one end of a neon lamp in a photoelectric coupler is connected with the input end of the earth wire E and a secondary end of the transformer, the other end of the neon lamp is connected with the centers of the two resistors, one end of a light sensitive resistor in a photoelectric coupling switch is connected with the anode of an integrated circuit power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode, the cathode of the diode is connected with the triggering pole of the silicon-controlled rectifier in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，变压器初级输入端串联电阻后并接在火线输出端和零线输出端，次级输出端与电阻串联后并联在地线开关两端，光耦内氖灯的一端与地线E输入端和变压器次级的一端连接，氖灯另一端与二电阻的中心连接，光电耦合开关内光敏电阻的一端与漏电保护器内的集成电路电源正极连接、光敏电阻的另一端与二极管的正极连接，二极管的负极与漏电保护器内的可控硅触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

Liu SH%Norris DM%Lyne P Volatiles from the foliage of soybean, Glycine max, and lima bean, Phaseolus lunatus: their behavioral effects on the insects Trichoplusia ni and Epilachna varivestis 10.1021/jf00086a050 Journal of Agricultural and Food Chemistry , 1989,null

杜永均%严福顺植物挥发性次生物质在植食性昆虫，寄主植物和昆虫天敌关系中的作用机理昆虫学报， 1994，(2)杜永均%严福顺%韩心丽%张广学大豆蚜嗅觉在选择寄生植物中的作用昆虫学报， 1994，4

It is shown that the asymptotically limiting distribution of the residual cusum test statistic is still the sup of a standard Brownian bridge under null hypothesis.

研究表明如果原假设条件成立，则残量累积和统计量的渐近极限分布仍然是一个标准布朗桥的上确界。

Passing a Null String as the MachineName parameter identifies the local machine.

如果传递一个空字符串作为计算机名称参数，标识的是本地计算机。

In Microsoft Word 2007, users can insert Lorum Ipsum Latin text by simply typing "=lorem" follow by Enter in the document, with n determines number of paragraphs that will be inserted, and n can be null mean nothing is insert between bracket, ie (, or 1, 2 and other number.

在Microsoft Word 2007中，用户可以插入lorum ipsum拉丁美洲的文字简单地输入"= lorem的"的后续由输入在文件中，与N确定的一些段落，将插入，和N可以空（毫无意义的是插入之间的支架，即，或1， 2及其他号码）。

Pointer to a null-terminated string that specifies the name of the objectfile, pipe, mailslot

指向一个空结尾字符串。该参数指定了用于创建或打开句柄的对象。

You could make a case that the typeCode is redundant and it should be possible to check which relationship is not null.

你可以创建一个项目，在项目中typeCode 是多余的，它应该有检查是否存在关联关系。

Christian J J The adreno-pituitary system and population cycles in mammals Journal of Mammalogy , 1950,null

宛新荣%钟文勤%王梦军布氏田鼠的生态学及控制对策北京：海洋出版社， 1998，null

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样