泵的抽气速率与气体的性质有关.Lashing velocity of pump is concerned with nature of air.现在已经采用了低温吸附技术和吸气离子泵的近代电子抽气设备.Recent electronic means of pumping using low temperature sorption techniques and getter - ion pumps have been introduce...
她把一些水倒进提桶里.Formed a bucket brigade to carry water to the fire.青年拿起提桶,开始工作.The young man picked up the bucket and set about his task.抽水马桶取代了提桶.Flush toilets are replacing buckets....
She had to lengthen her stirrup leathers.她得放长马镫皮带.For staying dry you'll want nice lightweight waterproofs to wear over your leathers.为了不被淋湿，你需要在皮衣的外面套上一件轻便的防水服。The stirrup leathers rubbed raw patches on his legs.马蹬...
The enzyme immunoassay diagnostic procedure was first described in 1971.酶免疫试验的诊断操作方法是于1971年首次描述的.In addition , E 2 in blood were determinated by enzyme immunoassay ( EIA ).采用酶免疫分析法测定血清雌二醇 ( E2 ) 水平.The marked immunoassay...
Brachial plexus deficits with and without shoulder dystocia . [ comment ] .臂丛赤字和无肩 难产.Methods In 11 cases, repair brachial plex direct injuries axillas in emergency.方法急诊修复腋窝部位直接碾挫的臂丛神经损伤11例.Objective Make function arm th...
验光师把视力表靠近 一点: “ 现在能认出来 吗 ? ”The optician moved the chart closer: " Now can you read it? "我们这里有合格的验光师.We have qualified optometrists here.这迅速的参考是必须有的给全部眼科医师, 验光师和眼睛护理专业人士的口袋指南.This rapid reference is a must - have pocket ...
She might expose his crooked business deals to her tax inspector brother.她可能会向当税务稽查员的哥哥揭发他那些不正当的交易。Polly gave her a crooked grin.波莉向她不自然地咧嘴一笑。He crooked his finger: "Come forward," he said.他勾勾手指说：“过来。”...