首次的

Take out the white protector around the recording/playback head before you use this unit for the first time.

首次启用本装置前，请取出在录/放音磁头周围的白色保护片。

A high-performance liquid chromatographic method for the simultaneous separation and determination of aryltetralin lignans and flavonoids in Podophyllum emodi Wall.var. chinesis Sprague was developed. The separation was performed on a Kromasil-C 18 column by gradient elution with phosphate buffer-methanol (0-13min, 50∶50, 33min, 30∶70) as mobile phase at a flow-rate of 0.8 ml/min, with detection 270nm.

首次建立了桃儿七中苦鬼臼葡萄糖甙、4-去甲基鬼臼脂素、表鬼臼脂素、苦鬼臼脂素、苦鬼臼酯酮、鬼臼脂素、鬼臼酯酮、去氧鬼臼脂素、去氢鬼臼脂素等9种木脂素以及山柰酚、槲皮素等2种黄酮类组分同时分离测定的高效液相方法。

Kalman filter is first used to get the featured inflection point of pressure wave.

本文首次提出利用卡尔曼滤波捕捉压力波形拐点、进而获得时间差的方法。

Therefore, simulation system based on Polar Coordinates was firstly developed in the paper.

为此作者在国内首次研究开发了基于柱坐标系的充型与凝固模拟系统。

We demonstrate for the first time that polycystin-1 and polaris are crucial mechanosensitive molecules in endothelial cells.

我们首次证实polycystin-1和polaris是内皮细胞关键的机械传感分子。

Firstly, the binding of Cd~(2+) to CaM was measured at different pH through the use of Linear Sweep Polarography.

首次报道用单扫描极谱法测定了Cd~(2+)在不同pH条件下与CaM的结合。

Man's first pure chemical means to create a life on: Poliomyelitis polio menu may be one of the most useful books.

人类首次用纯化学手段制造出了一种生命体：脊髓灰质炎（小儿麻痹菜谱也许是最实用的读物之一。

Man first pure chemical means to create a life on: Poliomyelitis polio menu may be one of the most useful books.

人类首次用纯化学手段制造出了一种生命体：脊髓灰质炎（小儿麻痹菜谱也许是最实用的读物之一。

Chopin completed his Polonaise-Fantasy in 1846, a work in which he combined the title polonaise and fantasy specifically for the first time.

萧邦《幻想波兰舞曲》完成於1846年，是萧邦首次在标题上明确地将「波兰舞曲」和「幻想曲」两个乐种名称结合的作品。

The project has discovered and reported a new polytype of wagnerite, Ma5bc.

本项目通过研究发现并首次报道了氟磷镁石的矿物结构一种新多型（Ma5bc）。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。