可保持的

Simulation results show that the proposed method can hold the overall control precision while the total switching loss is reduced effectively.

仿真结果表明，采用所提出的方法可在保持总的控制精度的同时有效降低总的开关损耗。

The Production Department shall establish and maintain the records of every lot of medical devices with the production quantity and sales quantity approved, so as to realize the tractability .

生产部应建立和保持对每一批医疗器械的记录，以实现可追溯性要求，并且标明制造数量和批准销售的数量。

The utilization of grass vegetation on uncropped land was the effectiveway of accumulating and retaining N in this land.

可利用撂荒土壤上的草本植被作为累积和保持N的有效手段。

The Li'l Goat's Milk Zinc Ointment contains 40% zinc as an active ingredient.

新鲜的山羊奶初乳可使宝宝敏感的皮肤保持润滑。

Efficiency: 4-layer package: 60 bundles/hour, 30-50kg/bundle. It can make the storage period longer, prevent effectively stretching die from ultraviolet rays and insulate air and carry out anaerobism ferment so as to keep the freshness and nutrition contents of the pasture.

包四层为每小时60捆，每捆30-50kg，可连续24小时作业，包后能较长时间的贮存，拉伸膜能有效地阻隔紫外线侵入，与空气隔绝，进行厌氧发酵保持牧草的新鲜和营养成分。

Ys-2HK series pressure transmitter has high precision,high stable,insulating sensitive accessory,which is connected integrated artcraft with insulating diaphragm technic.The product could keep good sensitivity , linearity and stability under the bad environment.

概述 YS2HK 系列压力变送器，选用进口的高精度、高稳定性、隔离式敏感组件，该组件把固态集成工艺与隔离膜片技术结合在一起，产品可在恶劣环境下工作保持优良的灵敏度、线性度和稳定性。

An image-forming device, especially an optical magnifying device, e.g., binoculars or a telescope, has an image influencing optical component, more specifically an eyepiece. The same is held by means of a holding device in such a way that the optical component is axially displaceable along the optical axis of the image-forming device.

一成像装置，特别是光学放大装置如双筒望远镜或伸缩式望远镜，它有一影响图像的光学零件，特别是一目镜，该零件用一保持装置如此夹持，以使其可在轴向沿成像装置的光学轴线移动。

Results There were 3 types of bone metastasis changes according to different reactions to the endocrinotherapy: decreased or disappeared; Stable; augmented. Each change was matched to the PSA change.

结果 前列腺癌骨转移患者内分泌治疗后根据骨转移灶的数目将骨显像表现可分为3种类型：减少或消失；保持稳定状态；增多；每一类型伴有相应的血清PSA变化。

Results There were 3 types of bone metastasis changes according to different reactions to the endocrinotherapy: decreased or disappeared; Stable; augmented. Each change was matched to the PSA change.

结果 前列腺癌骨转移患者内分泌治疗后根据骨转移灶的数目将骨显像表现可分为3种类型：减少或消失；保持稳定状态；增多；每一类型伴有相应的血清PSA变化规律。

Imaging findings were measured and analyzed. Results There were 3 types of bone metastasis changes according to different reactions to the endocrinotherapy: decreased or disappeared; Stable; augmented. Each change was matched to the PSA change.

结果 前列腺癌骨转移患者内分泌治疗后根据骨转移灶的数目将骨显像表现可分为3种类型：减少或消失；保持稳定状态；增多；每一类型伴有相应的血清PSA变化规律。

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％。