季节

Methods The blood lead contents of 4385 children aged 0-18 were determined, by the Anodic Stripping Voltametry, who were received physical checkup from March 2002 to February 2003 in Beijing.

方法采用阳极溶出伏安法，检测4385例1个月～18岁儿童的血铅水平，并比较不同年龄组男、女童的血铅水平及其季节特点和临床特征。

The biomass of phytoplankton is the best in summer and fewest in winter.

生物量的季节变化总体趋势为夏季最高，冬季最低。

The seasonal variability of PBSi has a close link to the change of phytoplankton community structure.

PBSi含量的季节差异与浮游植物群落结构的演替有着密切关系。

It was a bad season in which to have picnics.

这是一个不适于野餐的季节。

Pilkington, was an easy-going gentleman farmer who spent most of his time in fishing or hunting according to the season.

庄园主皮尔金顿先生是一位随和的乡绅，随着季节不同，他不是钓鱼消闲，就是去打猎度日。

Urethra and seasonal factors: such as frequent urination but each time not more than urine, urine without pain expression, and no other symptoms, the first thing to consider local factors, such as inflammation of the urethra, phimosis, or pinworm such as to stimulate the genitals.

尿道及季节因素：如尿频但每次尿量不多，尿时无痛苦表情，也无其他症状，首先要考虑局部因素，如尿道口发炎，包皮过长，或蛲虫刺激阴部等。

Whenever DaoHua fruits, with branch should harvest, can make a person associate to du fu body from the piron poem:"well, when the spring rain season is known, wind into night, moistens everything silently."

每当稻花飘香、硕果满枝的丰收季节，会让人从刘强身上联想到杜甫的一首诗："好雨知时节，当春乃发生，随风潜入夜，润物细无声。"

Besides spring and autumn, summer is the peak season of pityriasis rosea also. Pityriasis roses presents atypical lesions, locations and severe pruritus. The pathogenesis of pityriasis rosea may be related with HHV-6 infection.

除春秋季外，夏季也是玫瑰疹的高发季节；其可表现为不典型的皮损、不典型的发病部位及伴有显著瘙痒，值得临床医师重视；其发病可能与HHV-6感染有关。

You see, here in Pixie Hollow, there are different realms for every time of year.

这里的小精灵山谷，你会看到一年四季不同的季节

The species is suspended placentation, anatropous ovule and nuclear endosporm. The embryo of Ch.smyrnioides is very small in mature seeds. They could successfully germination after 4 6 months of...

在自然状况下，明党参种子后熟阶段是我国东部地区的梅雨季节，对气候的不适应是其濒危的重要因素之一。

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％。