查询词典 precursor

We can learn from Thomas Edison that a series of apparent failures is really a precursor to success.

我们能获悉从Thomas Edison，一系列的明显的失败真正地是前体对成功。

Objective: To study the changes of thrombus precursor protein in unstable angina and its value in forecasting of prognosis.

目的：研究不稳定型心绞痛患者血浆血栓前体蛋白的变化及其对预后的预测价值。

Objective: To investigate the values of measuring cardiac troponin Ⅰ and thrombus precursor protein in patients with chest pain.

目的：探讨血栓前体蛋白和心肌肌钙蛋白Ⅰ在急诊胸痛患者中的检测意义。

A lymphocyte that derives from the thymus and is the precursor of a T cell .

胸腺细胞一种由胸腺繁殖而成的淋巴细胞，是t 细胞的前身

We have had some indication, however, that some primitive precursor of behavior, particularly muscle tonus, is an important factor for at least one aspect of skeletal development.

然而，有些徵兆显示一些行为的原始先驱，特别是肌肉强直性，至少是骨骼发展其中一方面的重要因素。

After amputation, the expression of desmin appears first in the distal end epidermis and the peritoneum 4 d PA. The expression in the peritoneum lasts to the 14 d PA when expression of desmin appears in the musculature, while that in the distal end epidermis only lasts to the 8 d PA when the connective tissue below begins to express desmin. Moreover, from the 4 d PA, musculature and epidermis of the tube foot begin to express desmin and the expressions last to the 20 d PA. From 8-14 d PA, musculature of the ambulacral plate expresses myogenin and the peritoneum also expresses myogenin from 14-20 d PA. All these results indicate that precursor cells for muscle regeneration in adult starfish A.rollestoni are mainly from the distal end epidermis and the parietal peritoneum.

创伤后第4 d，顶端表皮层及体腔上皮中首先出现了desmin表达，体腔上皮中desmin的表达一直持续到第14 d，此时其上方的肌肉组织中也出现了desmin表达；而顶端表皮层中desmin的表达仅持续到第8 d，同时其下方的结缔组织也开始表达desmin；此外，从第4 d起，管足肌肉及管足表皮层开始表达myogenin，且该表达一直持续到创伤后的第20 d；而第8 d起，步带板肌肉也出现了myogenin的表达，此表达一直持续到第14 d；从第14 d起，体腔上皮也出现myogenin表达，且一直持续到第20 d。

Based in part on commonalities in embryonic development among all chordates, the tunicate brain is believed to resemble the evolutionary precursor of the vertebrate brainstem.

被囊动物的神经节和脊椎动物胚胎发育过程中大脑的发育有相似之处，被认为是脊椎动物

Analysis on precursor in laser ultrasonics in metal and non-metallic materials.

金属和非金属材料中激光超声前驱小波分析。

First, sunlight's ultraviolet rays act on a precursor compound in skin.

首先，阳光的紫外线采取行动的先导化合物的皮肤。

Carbon monoxide is also an ozone precursor, but to a lesser extent than unburned hydrocarbons or nitrogen oxides.

一氧化碳也是臭氧的前体，但比未燃烧的碳氢化合物和氮氧化物程度较轻。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。