时刻测定

The principles and a description of the main parts of the new instruments are as follows :(1)By means of a fused quartz mirror system and mercury horizon(shown in fig.4),a telescope with a fixed glass grid,three photomultipliers with respective a.c.amplifiers and a time recorder,the astrolabe can determine the time of almu- cantar transit of a star ...

新仪器的特点如下：(1)借助熔石英角镜组和汞地平、一架望远镜和固定的玻璃记录栅、三个光电倍增管及其交流放大器和一架计时仪，此仪器能无人差地测定星过等高圈时刻。

Later, people designed a kind of hour counter using the sun to determine the time ——the sundial.

后来，人们设计了一种利用太阳测定时刻的计时器——日晷。

The concentration was determined by LC/MS/MS and a concentration-time profiles could be obtained. The values of AUC were calculated with trapezoid method, t1/2 was calculated according to the last four points in the elimination phase.

采用液相色谱-质谱-质谱联用法，分别测定了给药后不同时刻比格犬血浆中氨苄西林钠和氨苄西林钠/丙磺舒钠浓度，绘制了血药浓度-时间曲线。

METHODS The residual concentrations of sodium formaldehyde sulfoxylate in the solutions were determined by iodimetry, the datas were fitted by linear regressions and then ...

在高精度电热恒温箱中在不断通入空气或医用纯氧的情况下，采用碘量法测定甲醛合次硫酸氢钠在水溶液中不同时刻的浓度，作出降解曲线，将测得的数据进行降解动力学方程的拟合并获得动力学参数，并计算反应速率常数。

Each group of mouse was beheaded for blood in the corresponding time, to test red blood cell, hemoglobin and haematocrit, prepared serum for measuring EPO and T.

各组大鼠在相应时刻断头取血测定血常规指标，制备血清测EPO和T含量。

The pH value of the system was kept at 4, 5, 6 and 7 for 150 hours respectively. The concentration of major and heavy metals in the solution was determined.

实验中将浸取液的pH值分别控制在4、5、6、7，持续滴定150 h，在不同时刻测定溶液中主要元素和重金属等多种组分的浓度。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。