等倍数

Methods By means of UPLC, apply factorial experiment design to investigate overall the changing rule of the contents of salvianolic acid B,tanshinol,protocatechualdehyde and etc.in salvia miltiorrhiza with different multiple of water、decocting duration,decocting times.

方法使用超高效液相色谱仪，采用析因试验设计，考察了丹参饮片在不同加水倍数、煎煮时间、煎煮次数下的煎出液中丹酚酸B、丹参素、原儿茶醛等多种成分的含量变化规律。

Moreover, second-winding current waveform of a current transformer is calculated under the transient current of the typical short-circuit fault by numerical method. The analysis shows that the relevant protection equipment may refuse to trip when the fault current is extra high. It will result in the maloperation of protective relays for loss of their selectivity, and cause other protective relays to operate beyond range, and extend the scope of shutdown of power supply.

在这些回路出口处发生相间直接短路等严重故障时，流过相应TA一次侧的故障电流可能达到TA额定工作电流的100倍以上，大大超过了保护用TA的10%误差容许倍数，将使TA严重饱和，从而影响相关的保护设备的动作性能，因此有必要对在这种特大电流作用下的TA的传变特性做一些探讨，以分析其对继电保护装置动作特性的影响及应采取的措施。

The results indicated that apple juice mingled with a certain amount of pear juice was characterized by great changes in pH, 295 nm absorbance, total sugar/reduced sugar and optical rotation, and that these 4 indexes can be used .

从相同稀释倍数下的梨汁以不同体积掺入苹果汁后的pH变化，295nm处的吸光度的变化，总糖和还原糖的变化，旋光度的变化以及糖的薄层层析和感官评定等16个方面进行了探讨。

The reference distance is 25 cm.All magnifications are calculated from this distance (magnifiers, magnifying glasses, telescopes).

标距的规定是25厘米，放大镜、放大器和望远镜等光学产品的放大倍数都是以这个标距来计算的。

Basing on ice formation rate of AgI at different temperatures after "37" anti-aircraft shell exploding, multiple relationship of two gradient temperature, as well as exploding time, angle, vertical height, contour interval and slanting distance of anti-aircraft artillery 83 rainfall bomb, the ideal dissemination radios and launch angle of ideal density were calculated, and the suitable bullet number and operating method were analyzed, for the purpose of using reasonable method of firing and the least person rain ball to achieve best precipitation enhancement effect.

利用&三七&高炮炮弹爆炸后AgI在不同温度下的成冰率及前后2个温度梯度倍数关系，以及高炮83型增雨弹引信自炸时间和射角及其所达垂直高度、水平距离、斜距等资料，计算出理想浓度的理想弥散半径和发射角度，从而分析得出在人工增雨作业中适宜的用弹量和作业方法，以期利用合理的射击方法，使用最少的人雨弹，达到最佳的增雨效果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐