查询词典 stem

For rising stem valve, check if the length of stem extension conforms to the length of stem cap.

如果是明杆阀门，应检查阀杆伸出量与阀杆护套的长度是否相符。

"The president is, in effect, allowing federal funding of human embryonic stem cell research to the extent that it's permitted by law -- that is, work with stem cells themselves, not the derivation of stem cells," he said.

他还说，总统允许联邦政府资金用于法律许可范围内的胚胎干细胞研究--这就是说研究干细胞本身，而不是干细胞的来源。

The Geron team began its work with what is known as a Presidential stem cell line — stem cells derived from discarded in vitro fertilization embryos that already existed in 2001 when former President Bush decided to prohibit the use of federal funds to pursue human embryonic stem cell work.

Geron小组用一种被称为总统干细胞开始他们的工作---这种干细胞是从2001年起就存在的被遗弃的体外培养的胚胎中提取的，当时布什总统决定下令禁止使用联邦基金购买人类胚胎干细胞的研究工作。

The Geron team began its work with what is known as a Presidential stem cell line — stem cells derived from discarded in vitro fertilization embryos that already existed in 2001 when former President Bush decided to prohibit the use of federal funds to pursue human embryonic stem cell work.

Geron团队开始他们的研究工作被称为是总统胚胎干细胞株——他们利用试管受精胚胎中丢弃不要的那些干细胞，当时在2001年前任总统布什决定禁止利用联邦基金去从事人类胚胎干细胞工作。

Bobai is characterized by water spinach planted paddy fields, dense leaf stem length, leaf tail taper,鲜绿crisp, the stem pick into a paragraph break, the fracture that split kink, with a sharp knife could not cut the stem I ping.

博白蕹菜的特点是水田栽植，茎长叶密，叶尾尖细，鲜绿脆嫩，把茎蔓摘断成段，其断口即裂开卷缩，用锋利的刀也无法将茎口切平。

The packed valves used by Air Products employ a two- or three-piece stem in which the lower stem or spindle connects to the upper stem via a slip joint.

Air Products使用的密封阀采用两个或三个阀杆。下阀杆或轴通过伸缩接头同上阀杆连接在一起。

Valves used by Air Products employ a two- or three-piece stem in which the lower stem or spindle connects to the upper stem via a slip joint.

下阀杆或轴通过伸缩接头同上阀杆连接在一起。

Start stem O-ring seal over stem, then press into position as handle is pressed down over stem.

从阀杆上的阀杆O形环密封开始，然后在手柄安装在阀杆上后，将其压进手柄的位置上。

The results showed that the variance in stem shearing force of Alfalfa and rye grass are due to a combination of factors, including changes in chemical composition, morphological characteristics. DM and NDF degradability of alfalfa stem had negative relationships with shearing force. Shearing force could be used as an indicator of forage stem nutritive value.

对于盛花期紫花苜蓿及灌浆期冬牧70黑麦草，茎剪切力受形态学指标、化学组成的综合影响；紫花苜蓿茎剪切力与DM、NDF48h瘤胃降解率之间存在显著负相关，因此可用剪切力估计紫花苜蓿茎养分降解率的大小。

4 Stem bushing material, its hardness and strength shall be not more than stem, and in the water-soaked conditions and the valve stem, valve did not form a electrochemical corrosion.

2.4阀杆衬套材质，其硬度与强度均应不大于阀杆，且在水浸泡状况下与阀杆、阀体不形成电化学腐蚀。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。