Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time
隨后以這幾種重金屬作為實驗毒物，以鯽魚為實驗動物，應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及
其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等，全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響，初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響，為制定漁業生產上預防性的管理措施提供科學依據，及時避免或減輕重金屬污染對水生生態系統造成的損害。
"then she had better come to us, " said lady bertram with the utmost composure.
「那麼，最好讓她到我們這里來吧。」貝特倫夫人極
其安詳地說。
Road vehicles - anchorages in vehicles and attachments to anchorages for child restraint systems - seat bight anchorages and attachments
道路車輛.兒童約束系統在車內固定點及主固定電的
安裝.座椅座面和靠背之間的固定點及
其安裝
The biogenic amines are harmful products of fermented foods, which affect their safety
生物胺是發酵食品中的有害產物，是影響
其安全性的重要因素之一。
The biotechnology and transgenic food safety controversy
轉基因食品及
其安全性
It is a heavyweight detergent that contains active emulsifying agent and rust - curbing agent it can easily rid grease paraffin carbon spots dyestuff and mold spectacles of the mechanic equipment metal surface or any ornamental surface it can be easily used and has an obvious effect with respect to its economy and security it works better when diluted with warm water
本品屬重量級除漬去油污劑，經含有強力滲透表面活性乳化劑和銹抑制劑，極易去除機械設備、金屬表面、任何裝飾表面、油脂、石蠟、碳跡、染料、霉斑等污物，使用方法簡單，清洗效果顯著，而且及
其安全經濟，溫水稀釋效果更佳。
By rubber strips. we ' ve installed the strips along the hatch coamings
藉助于橡膠密封條，將
其安裝在艙口圍板四周。
The fingerprint has the unique with the constant, so the application of fingerprint identification technique in the safe will consumedly increase its safety with the dependable
由於指紋具有唯一性和不變性，因此將指紋識別應用於保險箱，將大大提高
其安全性和可靠性。
In most cases, it was found that the jb criterion is safer than hg specification, but adverse result was obtained when r / r is close to 0. 8 and d / t is too small ( less than 40 ). code in c language was worked out for simplifying the calculation
在大多數情況下，按照jb標準對此種結構進行補強設計時
其安全裕度要比hg標準為高；但是當開孔率接近0 . 8且d t很小時（不大於40 ） ，依jb標準補強設計后的
安全裕度反而較按hg規范計算結果要小。
( 2 ) design of the implantating device : some quantity of 316l stainless steel, perform forging and thermal rolling, drawing filament ( diameter 0. 4mm and 0. 23mm respectively ), enlacing and jointing, after that assembling the products into guiding filum, a technical examination was carried out to appraise their physical capability. the second part : experimental study : animal experiments were used to screen and observe its validity and security : under general anesthesia, tracheotomy was performed on the healthy dog, the bronchus was localized using x - ray fluoroscopy fibrobronchoscope and with the help of the implanting equipment, several niti alloy occludes were implanted into the target bronchus of the dogs through the biopsy channel in the fibrobronchoscope
（ 2 ）推送器的研製：取316l不銹鋼熱軋，分別拉製成不同直徑的不銹鋼絲分別用作製作內芯、外環及車制螺絲，再經纏繞、焊接、裝配成推送器。對上述兩者進行技術鑒定。第二部分：支氣管封堵器的實驗研究：四種形狀的封堵器分四組（上述四種封堵器各12隻）進行動物實驗，分別觀察
其安全性與有效性。
Sussenbach needs two more people to help him tranquilize the bear, safely remove it from underneath the porch and take it to a den in one of the state ' s game lands
為了在不驚動這只熊的情況下，將
其安全地從門廊下轉移到該州狩獵區的一處獸穴中去，聚森巴赫還需要兩個幫手。
The application of genetic engineering and its safety management
基因工程的應用及
其安全性管理
It can be easily installed on the hard disk
將
其安裝到硬盤上的方法相當簡單。
Harm and management of alien invasive pest
外來入侵物種的危害及
其安全管理問題
Dosimeters should be inserted in the load in sufficient number and close enough together to ensure that there is always a dosimeter in the irradiator
為確保輻射滅菌器中始終有劑量指示劑，被滅菌物品中應
安放足夠數量的劑量指示劑，
其安放間隔不宜過大。
Technical specification foroperation, maintenance and safety of urban night soil treatment plants
城市糞便處理廠運行維護及其安全技術規程
